@kai YES. There is a confirmed story about hisa-nii. It's coming out soon. (:
i think this is it (it's not in English though) https://m.youtube.com/watch?v=cuLbqBgru3Q
It's Kashiwagi Yuu-!! Yeahhh Towa's friend who looks girly but trust me (I've seen some spoilers before) Sakuraga Mei-sensei drew Yuu as a grown up person and he's really handsomeee~ just look forward to her upcoming mangas! ヽ(*≧ω≦)ノ
can't wait for hisa-nii's story!! he's my fav character so far. when is it going to be scanalated?,