Ōkuninushi (Japanese: 大国主) was a famous hero and one of the more personable gods as part of the Japanese Izumo mythology. His name literally translates to "Great Land-Owner" or "Great Land Master" and he was in charge of firming the land during creation. He was known as the Lord of the Central Land of Reed Plains (another name for Japan). In Shintoism, Okuninushi-no-Mikoto is considered the god of the earth and the underworld, as well as of relationships, nation-building, commerce, medicine, and agriculture.

He is also known as Ōmononushi (大物主神) or Onamuchi, and the amiable Daikoku/Daikokuten of the Seven Lucky Gods is considered his counterpart (as their names have a similar reading).

Okuninushi was the youngest sibling of 80 cruel brothers, all deities living in Izumo. Hearing of the beautiful goddess Yagami-hime in the land of Inaba, every one of the brothers decided to try and woo her. Bringing along Okuninushi in order to carry all their luggage, he soon lagged behind his brothers from the burden. On the way to Inaba, the large group of brothers came across a suffering hairless hare, and decided to play a prank on it. They advised it to bathe in seawater, then stand on top of a high peak and let the winds and sun dry it, telling the hare this would help it recover more quickly. The hare did as the brothers said, but instead of recovering, things worsened as its skin dried out and cracked, agitated further by salt from the seawater. Unable to stand the pain, the hare fell to the ground. Trailing behind his brothers, when Okuninushi found the crying rabbit he asked what had happened. The rabbit told its story.

Originally from the island of Oki, the hare had wanted to travel to the mainland but was unable to do so on his own. So coming up with an idea, he challenged the sharks surrounding the island. He told them "Let’s see which there are more of, you sharks or us rabbits. Have all your fellow sharks line up one by one from here to Cape Keta, and I’ll count you. Then we’ll know for sure which group is bigger." As the sharks lined up, the hare jumped from shark to shark, counting each one. Just before it leapt to the mainland, it boasted about tricking the sharks, so the final shark bit off the rabbit's fur. Lying on the ground, that was where he met the large group of gods whose advice had made things worse.

After hearing the tale, Okuninushi told the hare to wash itself in the nearby fresh water river, then lay out fluff from the cattails and roll in it. Doing so, the rabbit's pain was soothed and it soon completely healed. In gratitude the hare gave a prophecy that Yagami-hime would choose Okuninushi over all of his brothers. When Okuninushi finally arrived where his brother's were, the princess told the elder brothers that she would have nothing to do with any of them, but would marry Okuninushi.

Enraged by and jealous of their younger brother who obtained the affection of the goddess-princess of Inaba, the elder brothers schemed to kill Okuninushi. They killed him twice, once with a smoldering boulder and once with a trap in the woods. Both times he was killed, Okuninushi was revived by his mother Sashikuni-waka-hime, a clam goddess. After the second time, Okuninushi was able to escape to the underworld ruled by Susanoo.

After fleeing to the underworld Ne no Kuni, Okuninushi met and fell in love with Suseri-hime. Her father, Susanoo, however, did not approve of the relationship and so decided to test the young man. First, he was told to sleep in a room full of snakes. Suseri-hime gave him a scarf that, when waved three times, would freeze the snakes, allowing Okuninushi to pass the night without incident. Second, he was to stay in a room full of wasps and centipedes. Again he was helped by Suseri-hime with a scarf that worked in the same way as the first. Finally, Susanoo took him to a big field and shot an arrow, telling Okuninushi to retrieve it, before setting the field on fire. About to succumb to the flames, a mouse ran up to him and told him that the "Once inside, it’s big and hollow, but the entrance is narrow and tight." Recognizing the invitation into the mouse's home, Okuninushi stomped on the hole where a large burrow opened up and he was able to wait out the fire. The mouse also helped him find the arrow and he returned it to Susanoo.

Still not completely unsatisfied, Susanoo then told Okuninushi to pick the lice out of his hair. However, rather than lice, Okuninushi found many centipedes. Suseri-hime again came to help him, giving him red clay and berries, which he chewed together and spat out, causing Susanoo to think it was the centipedes he was chewing and spitting out. Eventually falling asleep, Okuninushi then tied Susanoo's hair to the rafters of the house and blocked the door with a boulder. Then taking the sleeping god's sword, harp, and bow and arrows, Okuninushi and Suseri-hime fled together. But when the harp knocked against a tree. Susanoo awoke and his house fell around him, before he chased the couple all the way to the entrance to the underworld.

Fortunately, during the trials Susanoo had grown fond of Okuninushi, and so instead of catching them he let them go. Instead he told Okuninushi to take his tools to the surface and defeat his brothers, then build a palace for Suseri-hime that would reach the heavens.

Using the magical items lent by Susanoo, Okuninushi defeated all of his brothers in Izumo, allowing him to become ruler of the land. With the help of the dwarf god Sukunabiko, Okuninushi began to firm/form the land. Along with his friend the dwarf god they also developed medicine and managed to decrease the destructiveness of birds and insects. For this a shrine was built in Izumo for Okuninushi.

When Takemikazuchi descended to heaven with the command to pacify and unify the Central Land of Reed Plains, Okuninushi transferred his power over to Niningi, the grandson of Amaterasu. For this he was given rulership of magic and the unseen, where he then moved to the land of darkness, the underworld.

Aker was first depicted as the torso of a recumbent lion with a widely opened mouth. Later, he was depicted as two recumbent lion torsos merged with each other and still looking away from each other.

From Middle Kingdom onwards Aker appears as a pair of twin lions, one named Duaj (meaning "yesterday") and the other Sefer (meaning "tomorrow"). Aker was thus often titled "He who's looking forward and behind". When depicted as a lion pair, a hieroglyphic sign for "horizon" (two merged mountains) and a sun disc was put between the lions; the lions were sitting back-on-back.

In later times, Aker can also appear as two merged torsos of recumbent sphinxes with human heads.

Aker was first described as one of the earth gods guarding the "gate to the yonder site". He protected the deceased king against the three demonic snakes Hemtet, Iqeru and Jagw. By "encircling" (i.e. interring) the deceased king, Aker sealed the deceased away from the poisonous breath of the snake demons. Another earth deity, who joined and promoted Aker's work, was Geb. Thus, Aker was connected with Geb. In other spells and prayers, Aker is connected with Seth and even determined with the Set animal. This is interesting, because Seth is described as a wind deity, not as an earth deity.

In the famous Coffin Texts of Middle Kingdom period, Aker replaces the god Kherty, becoming now the "ferryman of Ra in his nocturnal bark". Aker protects the sun god during his nocturnal travelling through the underworld caverns. In the famous Book of the Dead, Aker also "gives birth" to the god Khepri, the young, rising sun in shape of a scarab beetle, after Aker has carried Khepri's sarcophagus safely through the underworld caverns. In other underworld scenes, Aker carries the nocturnal bark of Ra. During his journey, in which Aker is asked to hide the body of the dead Osiris beneath his womb, Aker is protected by the god Geb.

In several inscriptions, wall paintings and reliefs, Aker was connected to the horizon of the North and the West, forming a mythological bridge between the two horizons with his body. Certain sarcophagus texts from the tombs of Ramesses IV, Djedkhonsuiusankh and Pediamenopet describe how the sun god Ra travels through the underworld "like Apophis going through the belly of Aker after Apophis was cut by Seth". In this case, Aker seems to be some kind of representation of the underworld itself.

Aker appears for the first time during the 1st Dynasty with the kings (pharaohs) Hor Aha and Djer. An unfinished decorative palette from the tomb of Djer at Abydos shows Aker devouring three hearts. The location of Aker's main cult center is unknown, though. His mythological role was fully described for the first time in the famous Pyramid Texts of king Teti.

In Greek mythology, Persephone (/pərˈsɛfəniː/ pər-SEF-ə-nee; Greek: Περσεφόνη, romanized: Persephónē), also called Kore or Kora (/ˈkɔːriː/ KOR-ee; Greek: Κόρη, romanized: Kórē, lit. 'the maiden'), is the daughter of Zeus and Demeter. She became the queen of the underworld after her abduction by Hades, the god of the underworld, with the approval of her father, Zeus.The myth of her abduction and return to the surface represents her functions as the embodiment of spring and the personification of vegetation, which sprouts from the earth in spring and disappears into the earth after harvest. In Classical Greek art, Persephone is invariably portrayed robed, often carrying a sheaf of grain. She may appear as a mystical divinity with a sceptre and a little box, but she was mostly represented in the process of being carried off by Hades.

Persephone as a vegetation goddess and her mother Demeter were the central figures of the Eleusinian mysteries, which promised the initiated a more enjoyable prospect after death. The origins of her cult are uncertain, but it was based on ancient agrarian cults of agricultural communities. To her alone were dedicated the mysteries celebrated at Athens in the month of Anthesterion.

Her name has numerous historical variants. These include Persephassa (Περσεφάσσα) and Persephatta (Περσεφάττα). In Latin, her name is rendered Proserpina. She was identified by the Romans as the Italic goddess Libera, who was conflated with Prosperina. Myths similar to Persephone's descent and return to earth also appear in the cults of male gods like Attis, Adonis, and Osiris, and in Minoan Crete.

Pluto (Latin: Plūtō; Greek: Πλούτων, Ploútōn) is the ruler of the underworld in classical mythology. The earlier name for the god was Hades, which became more common as the name of the underworld itself. In ancient Greek religion and mythology, Pluto represents a more positive concept of the god who presides over the afterlife. Ploutōn was frequently conflated with Ploutos, the Greek god of wealth, because mineral wealth was found underground, and because as a chthonic god Pluto ruled the deep earth that contained the seeds necessary for a bountiful harvest. The name Ploutōn came into widespread usage with the Eleusinian Mysteries, in which Pluto was venerated as both a stern ruler and a loving husband to Persephone. The couple received souls in the afterlife and are invoked together in religious inscriptions, being referred to as Plouton and as Kore respectively.\

Pluto and Hades are the same figure. In Greek cosmogony, the god received the rule of the underworld in a three-way division of sovereignty over the world, with his brother Zeus ruling the sky and his other brother Poseidon sovereign over the sea. His central narrative in myth is of him abducting Persephone to be his wife and the queen of his realm. Plouton as the name of the ruler of the underworld first appears in Greek literature of the Classical period, in the works of the Athenian playwrights and of the philosopher Plato, who is the major Greek source on its significance. Under the name Pluto, the god appears in other myths in a secondary role, mostly as the possessor of a quest-object, and especially in the descent of Orpheus or other heroes to the underworld.

Plūtō ([ˈpluːtoː]; genitive Plūtōnis) is the Latinized form of the Greek Plouton. Pluto's Roman equivalent is Dis Pater, whose name is most often taken to mean "Rich Father" and is perhaps a direct translation of Plouton. Pluto was also identified with the obscure Roman Orcus, like Hades the name of both a god of the underworld and the underworld as a place. Pluto (Pluton in French and German, Plutone in Italian) becomes the most common name for the classical ruler of the underworld in subsequent Western literature and other art forms.

Hades (/ˈheɪdiːz/; Greek: ᾍδης Hádēs; Ἅιδης Háidēs), in the ancient Greek religion and myth, is the god of the dead and the king of the underworld, with which his name became synonymous. Hades was the eldest son of Cronus and Rhea, although the last son regurgitated by his father. He and his brothers, Zeus and Poseidon, defeated their father's generation of gods, the Titans, and claimed rulership over the cosmos. Hades received the underworld, Zeus the sky, and Poseidon the sea, with the solid earth, long the province of Gaia, available to all three concurrently. Hades was often portrayed with his three-headed guard dog Cerberus.
The Etruscan god Aita and the Roman gods Dis Pater and Orcus were eventually taken as equivalent to Hades and merged into Pluto, a Latinization of Plouton (Greek: Πλούτων, Ploútōn), itself a euphemistic title often given to Hades.