Kokuhaku Jikkō Iinkai ~Ren'ai Series~

Confession Executive Committee: Love Series (告白実行委員会〜恋愛シリーズ〜, Kokuhaku Jikkō Iinkai ~Ren'ai Series~  ) is a Japanese romance Vocaloid song series by HoneyWorks. The project was first distributed via Nico Nico Douga as a music video sung by Vocaloid Gumi titled "Hatsukoi no Ehon" (初恋の絵本) that was released on November 18, 2011. The project has spawned into various media forms of manga, novel, and anime.

Two anime movies respectively titled I've Always Liked You (ずっと前から好きでした. ～告白実行委員会～, Zutto Mae Kara Suki Deshita) and The Moment You Fall in Love (好きになるその瞬間を, Suki ni Naru Sono Shunkan wo) were respectively released in 2016.

Other Sources

 * (Novel)
 * (Film)
 * (FIlm)