Kuro, the protagonist (Player's character)!

Ultimate Killer Robotic Organism, A.K.A "K.u.r.o". That character is the major protagonist, undead cyborg made from the cybernetic reanimated deadbody of the Beelzebub's heir. His powers has an "amalgama" between Spider from Lady Scorpio (his mom), Demonic from Beelzebub (his dad) and Cybernetic from the reanimation process (mechanical ressurection).