With My Longtime Friend

Since childhood, Tenko was aware that her friend, Ouma Souta, was overly attached to her, but they were able to maintain their friendship as they weren't romantically involved in each other.
When going to the university, Souta becomes the most popular guy but also a jerk who constantly swaps girls.
One day, Tenko tells Souta to stop being so attached to her, as she has a new boyfriend now. Then Souta becomes more intimate with her, more than before, and...?

Official Translations:
Vol.1: English (DLsite, Coolmic, MangaPlaza, Renta!), S.Chinese, T.Chinese, Korean
Vol.2: English (DLsite, Coolmic, MangaPlaza, Renta!), S.Chinese, T.Chinese, Korean