Event ONT Conflict

Three years before Taimanin Asagi, the Oboro Ninja Troops killed multiple Taimanin. The end of the conflict is shown in the prologue of TA(1), with Asagi "killing" Oboro.

After Koukawa Oboro dissappearence and destruction of the Koukawa clan. She returned as Oboro and leader of the ONT. Murdering Taimanin, this hidden war, was noticed in the underworld but not public, with the death of many Taimanin, weakening their ability to fight demons in Japan.

It was understood by those that fought the ONT, that they worked for Nomad and their leader Oboro, was more of a pawn. Asagi was around ~20 years old, when she was send out to kill the leader. Both having fought together in the past as allies but with Oboro shift in personality, they were bitter enemies. Oboro set up an ambush against Asagi in the Tokyo but her ninjas were killed easily and "seemingly"Oboro was killed as well. However, Nomad as the mastermind, did avoid any serious loss and remained untouched afterwards.

Asagi would then against the wishes of the Taimanin leadership, retired with her boyfriend Sawaki Kyousuke for the next 3 years until Oboro's return.