His Name is 101 - Vol. 5 Ch. 12 - The Mysterious Bloodseeker

[MangaDex]

 

[redpanther]

Maybe he has to fight the reincarnation of Yomi once again, just like Megaman vs Dr.Wily

 

[SMAXZO]

Gee, I wonder who is this mysterious benefactor that knows Koichi's full name and that he has his 3 servants could be?