An ikemen romance simulation and RPG card mobile game for iOS and Android produced by NTT Solmare Corp. It is one of many otome games from a dating sim brand called Shall We Date? The player is a human exchange student at Devildom, a school in the underworld for demons, and is tasked with assisting the student council. There are currently 12 dateable characters with a group of brothers, avatars of the Seven Deadly Sins, at its core.
