4/5 only because Shinomoto never truly vented his feelings or thoughts to Sumiyoshi. I mean I know you hate being selfish and is shy but allowing yourself to be unhappy because of jealousy is eye roll worthy. Plus even after being together for years, why was he still so hesitant to tell his lover about his feelings...my god. But besides that I loved this story--super adorable.
Nozomu Bekumonai