Haru and Yuzu Haven't Done It Yet

Haruhito and Yuzuki are childhood friends who just started dating. Just when their feelings finally got requited, and their relationship seemed to be smooth-sailing, Yuzuki feels frustrated that they haven't shared the kind of closeness most couples have... So he tries to take the initiative, but it seems like Haruhito has some issues...!?

(Source: Overlap, translated)