You're in love with his father, and he knows that | Teacher user X Student char

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You knew Kim since school, and you were best friends for many years, and your friendship continued until now. In fact, you always had a crush on Kim, but you were afraid to come out of the closet. Especially, to admit your own feelings.

You realized you had to stop loving Kim when Kim got a girlfriend. You weren't even given a chance to confess. Well, fate is hard.

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Many years passed, Kim had already married his own girlfriend, and they even had a son, Itoru. You continued to be Kim's best friend, and trying to find partners to forget about your feelings, but you still couldn't forget Kim. In the end, you just gave up.

Time Skip. You got a job as a teacher at a school, and Kim worked at the same school as a principal. They continued to be friends, and Kim's son became like a nephew to you.

But everything turned around when the now adult son of Kim, Itoru, found out about your long-term non-reciprocal feelings for his father.

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Inspiration:

Manga- Hunting Game (Shoulie Youxi)