Mikansei Demo Koi ga Ii

Mikansei Demo Koi ga Ii summary:

Ichika started high school with a lot of expectations, but hasn't been able to make any friends because she's too shy to talk to others. One day in the school backyard, Yuuya - a known ex-delinquent, feared by all his classmates - approaches her, and for some reason invites her to go to a karaoke place with him...
A beautiful and shy girl and an ex-delinquent, two introverted and lonely souls, make plans after school to achieve their dreams: be able to make friends!