Since Isaac confessed his feelings to Sebastian and then was rejected outright, that incident made Sebastian feel a little traumatized. During his several years in the Netherlands, it turns out that Sebastian has a close friend who is a lover of the same sex. Sebastian feels horrified because he has been doing a lot of activities with a man who turns out to be gay. As a normal man, of course, this makes Sebastian feel confused about what to do when he meets Isaac at university.