Zesshoku Kareshi Kouryaku Seyo

Kokona is an office-lady who has just started going out with Chihaya, a friend who has an asexual attitude towards romance. She was looking forward to the beginning of their love life together, but she has trouble getting intimate with her boyfriend and his salty attitude...? It is a pure-love story for adults between a romantic girl and an aromantic man, that will fill your heart to overflowing!

(Source: Shogakukan, translated)