Source: https://kakuyomu.jp/works/16817330659903288953
Synopsis
Kashiwada Kaname, an ordinary high school student who could be found anywhere, meets a beautiful gyaru named Kurokawa Rena at his part-time job, who appreciates his polite work ethic.
However, Kashiwada is nervous about Kurokawa, who is in the top caste in his school, and takes a casual attitude toward her, but Kurokawa does not seem to mind, and despite the fact that she has a boyfriend, she gradually closes the distance between them–
Chapter 1 There is strong shadow where there is much light.
Chapter 2 We only see what we know.
Final Chapter Nothing is worth more than this day.