The protagonist of Descendants of Darkness; he is a slacker who enjoys sweets and sake. Because of his personality, no one actually wants to partner up with him.
Asato Tsuzuki is created by Yoko Matsushita, and he has no information regarding any inspiration used to create him. His Japanese seiyuu is Shinichiro Miki, and his American voice actor is Dan Green. His Italian voice actor is Gabriele Calindri.
Tsuzuki is a scatterbrained Shinigami who has a sweet tooth. However, he gets serious during his battles.
Tsuzuki can summon and use the power of the Shikigamis with the use of Ofuda talismans.