(W/A) Rintarou Ohshima. Meet "the Killing Machine" Owaru Endou: the cold-blooded and strongest hitman of a massive underworld organization who has decided to retire out of the blue. His reason? To stan his favorite underground idol with his head held high! But old habits die hard* especially for a man whose hands are stained with blood. Can Owaru truly shed his identity to live the ultimate fan life of concerts* meet and greets* and picture lotteries even when his past comes knocking?