[Reducing Mosaic]YUJ-027 From the day I had a relationship with my best friend's girlfriend while drunk, I secretly had sex with her multiple times during the summer of my fourth year in college without him knowing. Azusa Hikari

The summer of my fourth year in college.
Each of us had started to decide on our future paths, enjoying what would be our last summer as students.
Today too, I was drinking with my best friend Tomifumi and his girlfriend Hikari at our usual spot, following the routine course.
How many more times can we spend a day like this…? Somehow, I didn't want to go home, so we decided to have another round at my place.
When I woke up, Hikari was right beside me, breathing softly in her sleep.
Sometime during the night, she must have passed out from drinking.
Seeing Hikari's defenseless form, I couldn't stop the urge rising within me.
Even though Tomifumi was there…