Terete, Mitsumete, Koi wo shite

Overview

The new guy at Yuzuka's part-time job is Kurosawa-kun, a boy her age who goes to an all-boys school. She feels like he's staring at her all the time, but when she tries to talk to him, he gets very shy. "Maybe he likes me...?" When she looks at him more closely, she notices that he's actually quite handsome and just her type.... Oh no, the realization is making her blush self-consciously!　 When she boldly asks Kurosawa-kun about his feelings, he denies everything, saying "I don't even like you, don't be conceited...!" A girl from a co-ed school meets a boy from an all-boys school who is not used to girls. The boy's shy face makes her want to squeal... as she gets swept away by his tsundere act! A real youthful love story! (Source: Betsufure, translated)

Source: AniList