Tokyo: There Is Indeed Something Wrong with My Relationship

Kurokami Setsuna has a secret: His love is poison. All girls who like him will die in seven days. This is not an exaggeration. Not an urban legend. It is a curse engraved in his blood that has lasted for three hundred years - "Love that is not allowed must be repaid with death." He had lost eleven men. So he learned not to laugh, not to get close, not to be moved. He thought he would die alone until— A girl who was extremely lucky ran into his arms with a smile; A terrifyingly calm genius girl handed over a thick stack of analysis reports; A girl who was supposed to hate him said, "I don't forgive you, but I won't leave either." They both knew they would die if they came near him. None of them planned to escape.