Falling for Her Secret Side (俺は知らないうちに学校一の美少女を口説いていたらしい ～バイト先の相談相手に俺の想い人の話をすると彼女はなぜか照れ始める～ ; 无意间向她告了白 ; Ore wa Shiranai Uchi ni Gakkouichi no Bishoujo o Kudoiteita Rashii: Baito-saki no Soudan Aite ni Ore no Omoibito no Hanashi o Suru to Kanojo wa Naze ka Tere Hajimeru ; It Seems I Was Hitting on the Most Beautiful Girl in School Without Me Noticing: When I Told My Friend at Work About the Girl I Love She Started to Get Embarrassed for Some Reason) Chapter 15