This novel is a sweet and fluffy romcom telling the days of a boyfriend and girlfriend right after they’ve started dating.
The boyfriend, Watase Kairi, 17 years old, is a first-year in high school (returnee). Having just woken up from a 2-year coma, he’s a bit of a problematic young man.
The girlfriend, Koori Nano, 16 years old, is also a first-year in high school. A slightly annoying beauty, who loves dressing up and anything that sounds interesting.
The daily lives of the two basically boil down to this.

“Senpaaai, am I not super duper cute today~? Come on, it wouldn’t hurt to praise me a—”

“Yeah, you really are cute.”

“~~~!”

“Koori?”

“—This is exactly what I’m talking about, Senpai!”

A story of a slightly unaware Senpai, and the always immediately flustered Kouhai. No dangers of a heroine race or a breakup, just a pure and wholesome romcom.