Dantalion as he is known in the game is the leader of the Shinjuku Labor Camp at Kabukicho, he is first encountered once Ayato Katsuragi leaves Hatsudai Shelter after its destruction, he appears as a young man but Emi Kirishima's dog, Newton, sees through his disguise and so he offers them to join him with Bael, no matter what Ayato says a fight begins and after he's defeated he runs away with Isamu Yamase who has joined his side. Dntalion is later fought by Ayato with his friends alongside the resistance group called Pentagramma at the Shinjuku Labor Camp, after he´s defeated he runs away.
Much later in the game, after Ayato retrieves Yuuka Tachibana's head and pendant, he appears right outside of Bael's throne room and said that he was expecting him to come to the castle since no one was there, and so he fights the party one last time, and once he's defeated he says that this result was expected and he dies for good.
Trivia
This section is a stub. You can help Megami Tensei Wiki by expanding it.
No reason provided.
Dantalion in Giten Megami Tensei: Tokyo Revelation is fought three times in the game, however for unknown reasons these three times he is fought are actually three different entities by the game's analyze system and they are called Dantalion, Dantalion II and Dantalion III, each of them have different stats, resistances and skills.
Japanese
Shin Megami Tensei: Strange Journey