Boku ni Hana no Melancholy僕に花のメランコリー ; 我与花的忧郁 ; 나에게 꽃의 멜랑콜리

When Hana was a child visiting her mother's grave, she got to know a young boy named Yuzuru. He was Hana's first love. When she heard that he ended up moving away, she thought that it wouldn't be possible to see him anymore, but...? (Source: ShoujoHearts)