Responses
* Jin = Chiharu. Mistake there
Actually, Daigou is hamgimg up with a bunch of his friends when he met Kaoru at some bar. They dare him to get Kaoru to have sex with him. And later on Daigou returns to the bar with Kaoru and they have a drnk with Daygo's friends.
Sorry, hanging*
I just realised.. a lot of Fujisaki Kou sensei's main characters look like they don't have friends. Chiharu definitely got no such thing as a friend. Kazuki looked like he got no friends (more like acquaintances or college mates). Kaoru definitely is like Chiharu (maybe previously only got sex "friends"). Jun = Chiharu. Hmm Daigou myb has friends that he hangs out with (which aren't shown in any his story)... Well, sensei! Give them some good friends! They looked awful lonely...