"Baek hyung... I hope you'll remember me forever.. Promise me we're always a best friend..."he covering his red swollen eyes with his cap.. "I'll hyunie...we're gonna be a Best friend forever even you're moving away.."the ten years old baekhyun .... Baekhyun never knew chanhyun gender and he end up thinking that chanhyun was a boy and he was having a crush on her..he thought he was a homosexual.. Later they meet after 15 years apart...did baekhyun still remember chanhyun or he will forget her??