Yatara to Sasshi no Ii Ore wa, Dokuzetsu Kuudere Bishoujo no Chiisana Dere mo Minogasazu ni Guigui Iku

Koyuki Shirogane, a girl known for her beauty and equally harsh tone, giving her the nickname "Venomous Snow White," is saved by Naoya Sasahara as a man tried to hit on her. She may try to act strong, but on the inside, she is merely a young girl. Having been saved by Naoya, Koyuki falls for him, and Naoya on his end falls for Koyuki's innocent and cute attitude. Both fail to be honest with each other, but eventually bring themselves closer to admit their feelings for each other.

[Official English Light Novel](https://tentaibooks.com/en/books/from-toxic-classmate-to-girlfriend-goals-v1/)