Chinmoku Girl no Little Cry

Kohane, a high school student who has a bad pronunciation since she was young. She refuses to talk since she's been teased by others because of her accent and chooses rather not to, than being laughed at. One day, when Kohane was going to the teacher's lounge, she meets a senpai who had wounds from a fight and gives him bandages since there was no nurse in the office. Igarashi (the senior) confesses to Kohane and helps out for her English pronunciation contest. The story is about Kohane accepting herself and finding someone who accepts herself with her awkward accent.

(Source: utautai_iko)