[MUFR-001] Busty playhood Friend BSS: It's Too Late Now, I Should Have Loved Her First... Riho Shirahashi (Censored)

Riho is my childhood friend and I went to the same school as an introvert. We're still as close as we were when we were little, so I couldn't honestly express my feelings to her. But she still likes me, and I thought she'd always be by my side. But... Gradually, Riho's replies stopped coming... By the time I realized it, it might have already been too late... Or maybe I...