mana tatsuo

A friend of Asaga's who was always sickly due to a hereditary disease. As his illness persisted, he grew resentful towards the outside world. He ventured into Psyren and offered Asaga a card, but Asaga refused. In Psyren, he appears as a figure wielding a rifle that harnesses PSI energy. After killing all but five survivors, he targets them and destroys part of the building. Amamiya identifies him as a Burst user and notes that he also uses Rise to engage her physically. After using Trance, Amamiya realizes that Tatsuo had been transformed into a Tavoo by having an orb implanted into him. Tatsuo regains his senses after being struck by Ageha, yet his core remains because it is integrated into his body. Without his card, he stays in Psyren, revealing that he will die when his core runs out of energy, but he intends to find a way around this. He describes his time as a Taboo as feeling trapped in someone else's body and regrets all the killings he committed. He reappears in chapter 69 when he saves Asaga from some Taboo. Later, he is shown with a new Asaga as they plan to take down a tower. Tatsuo appears again during the W.I.S.E attack on Tenju's Root, riding atop Hiryu's dragon PSI. He uses his gun to poke holes in the dark sky, revealing the sun and causing the Tavoo in the area to disintegrate.