Wanting to see a naked girl in person, Tsuda Kouta attends a nude model sketching session where he was awakened to the arts.
There, he also meets our heroine who speaks in Kansai dialect and a pure, sugar-sweet love begins to unfold.

Yoshioka, a high schooler, fell in love with a woman nine years older than him!
How will this age gap romance play out?
"Tonight's the night! I'm going to confess to Mikami-san!"