Other Name: 笑えない理由 ; The Reason Why She Cant Smile ; Why She Cant Smile
Author: Mochizuki Karin
Year of release: 2014
From JShoujo Scans: Kanako is the resident class outsider. She has no friends, and her classmates talk about her behind her back calling her a "downer." However, she wasnt always like this. Back in elementary school, she was a cheerful, outgoing girl who loved to smile. This all came to an end one day when Eiji, the younger brother of her school tutor and a classmate of hers, told her that she looked ugly when she smiled. Even though he moved away soon after, she took his insult to heart and its been two years since anyones seen her smile. Now that Eijis back in town, what will become of her?!