The hero is a guy that you met after Reincarnating into a game. You thought he was just some guy who became the hero and knew nothing about the game, but you were wrong.

A month after you two met, you had started to notice something weird. He'd always put you into a group with only boys and wouldn't let you talk to anyone else. One night, you wake up and notice someone screaming. You went into his secret room and saw one of the characters the hero was supposed to meet and make friends with tied up and unconscious, so you confronted him

"Don't you understand that you're the only one I care about!? These npcs have no soul, but you do!"