I Think I Turned My Childhood Friend Into a Girl Vol. 5 by Azusa Banjo

In a strange coincidence, Mido and Hiura have ended up living under the same roof! As roommates, they're closer than they've ever been before, and each day brings more thrills and heart-pounding moments. There's no way they can avoid being hyper-aware of each other in a situation like this!
Binding: Paperback / softback