夕立のりぼん (Yuudachi no Ribbon)

Background
This song was uploaded on November 7, 2012, and has reached over 100,000 views. The song is about a 'secret after school' with a yandere theme. CHRIS drew a manga to go along with the song that expands on the story from the PV. It is featured in the Exit Tunes compilation album MAYU SPECIAL 2CD.