They can kiss, go to bed, and say all kinds of dirty things, but they dare not say "I love you."
1. Two-way secret love
2. Male but not female C. The male protagonist is 13 years older than the female protagonist and has had emotional experiences, but after falling in love with the female protagonist, he has not touched other women.
3. The male protagonist is sinister, strong, and not a good person.
Intention: love must be spoken out