Tink is the childhood friend of Rozalin, Overlord Zenon's only daughter, as well as her servant. He is a demon with two personalities, respectable and perverted, represented by the colors blue and red respectively.
During the siege on one of Zenon's castles, Tink was turned into a frog by a then unknown foe. Shortly after, he joins Rozalin and Adell once they explore the place's ruins.
(Source: Disgaea Wiki)
Content compiled by AnimeList.moe from publicly available sources.
