After spending many years as a errand boy in my hometown, I got my first girlfriend at university this spring. Her name is Mitsuki-chan, and she's a super cute, serious college girl... One day, while we were enjoying a lovey-dovey relationship, the doorbell suddenly rang loudly... Wondering who it was, I opened the door and found the prefecture's most charismatic delinquent, "Takemaru-senpai," there, full of energy again today, collecting ticket sales...