Takaya, Jin, and Chidori have all been adopted by the Chairman, Shuji Ikutsuki. With no need for experimentation, the three children grew up happily and became allies of SEES, now together as a humble family. But what other secrets lie within the Dark Hour, and who is this mysterious figure running about in the nights of Tatsumi Port Island? This is their story. (Ref to Shadow Cry)