"Lewd technique Lv. 9", "Bedroom technique Lv. 5" and "Sex King Lv. 8"... If we consider ONLY the manga, there is absolutely no reason for MC to have those, since there's nothing indicating that he is in a relationship with any of the girls. BUT I've seen someone write that, in the LN/WN, MC is having sex with both Dancer girl and Angelica.