ashita_hadashi_de_koi
Ashita, Hadashi de Koi. (あした、裸足でこい。 Tomorrow, When Spring Comes.) is a Japanese light novel series written by Misaki Saginomiya (岬鷺宮), with illustrations by Hiten (hitenkei). There's also a manga serialization drawn by Inui Ayatori.
It's a youth redo love story following Sakamoto Meguri as he tries to redo his high school life.