During one fateful night, when Akito was being followed and about to be attacked, Yo, jumped in and was mortally injured. When he woke up the next day in a strange place, he found himself unhurt with no signs of any wounds. As he stepped out of the room, he was marked by strangers as being a Tank… Immediately, he was being prowled at.. Bewilder by the attacks, he turned back into the room… Not long after, the noise stopped, and the door was opened by Akito. Akito explained that he was fatally injured and while on the verge of death, He had turned Yo into a Tank, destiny to be a Vampire..

After being bitten by a vampire, now Yo worries about his sense of humanity, decides to live as a normal cheerful human despite him being in the middle of his transformation. Will a solitary vampire fell in love for the first time? Will Yo, make it to his transformation or will he succumb to his rightful death?