It was the summer of our final year at university. With our futures taking shape, we were enjoying our last summer as adult students. As usual, I went drinking with my best friend Tomifumi and his girlfriend Hikari. Wondering how many more nights we would have like this, none of us wanted to go home, so we continued drinking at my place. When I woke up, Hikari was sleeping beside me, apparently having passed out drunk. Seeing her so defenseless made my desire impossible to contain—even though Tomifumi was still there. That drunken night became the start of our repeated secret encounters.