Riyuu
Japanese title: 理由
Type: Music
Episodes: 1
Source: Original
Genres: Avant Garde
Producers: Sony Music Communications
Duration: 4 min
Rating: PG - Children

Music video directed by Kato Ryu for the song Riyuu by Noriyuki Makihara that was included on his forty-seventh single "Believer". The short version of the music video was uploaded to Makihara's official YouTube channel on August 9, 2016. Later in the month, the full version was released on GYAO! for a limited time. It was also included on DVD with a limited edition release of his twenty-first album, also titled "Believer".