Suki ni Naru Sono Shunkan o: Kokuhaku Jikkō Iinkai (好きになるその瞬間を。~告白実行委員会~), also known by its English title The Moment You Fall in Love, is a 2016 Japanese animated youth romance film directed by Tetsuya Yanagisawa, written by Yoshimi Narita, and produced by Qualia Animation.
It is the second film based on Kokuhaku Jikkō Iinkai ~Renai Series~ songs, following Zutto Mae Kara Suki Deshita.
At school, Hina starts noticing Koyuki-senpai more and more which doesn't go unnoticed by Kotaro and another classmate Arisa Takamizawa.
This constant interruption angers Hina deeply and made her realize she was in love with Koyuki.
This saddens Hina and prompts her to talk with Koyuki about his school choice, eventually resulting in her crying and taking a picture with him as a memento.
With a new mindset and determination, Hina puts on make up every morning in hopes of talking to senpai and getting him to notice her.
Upon arriving at school, Hina was shocked to see senpai had change his image from being dorky to sexy.
Hina soon realized the reason Koyuki senpai changed his image was because he was in love with Natsuki Enomoto and wanted to be noticed by her.
(センパイ。) by HoneyWorks meets TrySail, and the ending theme is "Daikirai na Hazu Datta."