IYAMI's Seven-Day War: The End of the Counterattack Against the Sextuplets

"This is my final battle, zansu." IYAMI, always the laughingstock of the Matsuno sextuplets, was never just a comical antagonist. He was once a respected gentleman in Parisian high society, a man who lost everything in a single, abhorrent incident. The sextuplets' innocent cruelty awakens a genuine darkness within IYAMI. One day, a casual insult from Todomatsu ignites his fury. With a sinister grin, he declares, "For seven days, I'll fight you seriously, zansu. If you win, I'll disappear forev