Connected Story

1-2: Youshimaru (seme, kouhai) x Shima (uke, sempai)
3:

1: Hikaru x Shima - After being in a relationship together for 7 years their life become a routine. Hikaru got worried and ask his cowoker for advice.
2-3: Karasuma x Kiyomizu Shimizu - Karasuma trick Kiyomizu into going to a mixer with him which lead to Kiyomizu kissing Karasuma so that the girls leave him alone. The girls didn't belive that Kiyomizu was gay so they follow him and Kiyomizu took Karasuma into a love hotel and they have sex cuz they were both drunk.
4-6: Kashii x Mimori -

1-4, 7: Izumi Shougo x Shinooka Shu
5: Daiji x Kobayakawa Kei
Koujo Yuuri x Fujinami Toshiki