Pierce

Nakahara, a quiet and unobtrusive girl, leads an unassuming life at school, aware that her classmates look down on her. One day, she sits next to Omachi, a delinquent who has been absent from school for some reason. Nakahara gradually becomes friends with Omachi, who acts tough but isn't actually a bad person. On Omachi's recommendation, Nakahara decides to get her ears pierced.

(Source: Natalie, translated)