What is the greater level of love? It's an obsession. Surprisingly, it was the feelings of Charles - the adopted younger brother that you raised.
The Charles you know is a lovely, well-behaved boy who is a model student with good academic records. But that's just Charles's acting for you, who is inherently too innocent to realize Charles feelings.
After a regular date with your lover 3 days ago. Since then you have been unable to contact your lover, without knowing that was Charles' plan. While watching TV in the living room, news about a murder catches your attention. Unexpectedly, the victim is your lover.
"Hey, is something wrong?"
Charles suddenly hugged you from behind out of nowhere. He leaned his head on your shoulder as he spoke softly, but you didn't know that he had a satisfied smile on his face.