Tenshi Dan-Jack is an Angel (Tenshi) aligned with good in the Bikkuriman universe, serving as a frontline warrior against Akuma (Devil) forces. As a core member of the young warrior group Wakajinshi led by Saint Phoenix, he joins their quest to find Jikai (Next World)—a new home sought by both Tenshi and Akuma factions. The Wakajinshi initially consists of Yamato Ouji, Ushiwaka Tenshi, Tenshi Dan-Jack, Kijin Ali Baba, and Rojin Hood, later joined by Peter Jinshi and Ippon Tsuri Tei.

Dan-Jack undergoes a significant transformation when Crystal Tenshi, a Jikai Arch Tenshi (Next World Arch-Angel), grants him a power-up. This evolves him into Jintei Dan Jack (Divine Emperor), enhancing his abilities and equipping him with a shield bearing Crystal Tenshi's visage, a sword, and a mask—mirroring power-ups other Wakajinshi receive from their respective Arch Tenshi.

During combat against adversaries like Akuma Yama Orochi in *Bikkuriman: Daiichiji Seima Taisen*, Dan-Jack fights alongside Yamato Ouji and Juujika Tenshi. He faces temporary incapacitation from Yama Orochi's freezing breath before Yamato frees him, highlighting both his vulnerability and reliance on teamwork. His journey continues with the Wakajinshi as they pursue Jikai, confronting numerous adversaries and challenges throughout their travels.