A boy who accepted a systematic mission to save his mother spent three years in a parallel world getting the indifferent female CEO used to his existence. However, after the mission was completed, he chose to die "accidentally" and left. Only after his death did he discover that she actually loved him, but she just wouldn't say it.
Intention: "Some love is spoken too late, and no one responds when it is understood. Don't let silence and habits lead to irreparable regrets for the rest of your life."