Act 2

 is the first mini album released by Aida Rikako. It.

The lead song "Prism" was written by Otsuka Ai.

The song "Blue Hour", which was released only for digital streaming in the past, has been rearranged for the mini album and recorded as "Blue Hour (another blue ver.)".

CD

 * 1) Act 2
 * Composition & Arrangement: Tanaka Hayato
 * 1) My Trailer
 * Lyrics & Composition: nefuyu
 * Arrangement: PRIMAGIC
 * 1) Prism (プリズム)
 * Lyrics & Composition: aio
 * Arrangement: aio × hiroo
 * 1) Hanauta to Mawarimichi (ハナウタとまわり道)
 * Lyrics: Mutsumi Sumiyo
 * Composition & Arrangement: Tanaka Hayato
 * 1) Blue Hour (another blue ver.) (ブルーアワー (another blue ver.))
 * Lyrics: Aida Rikako
 * Composition: Ichikawa Jun
 * Arrangement: PRIMAGIC
 * 1) Umareru (うまれる)
 * Lyrics: Aida Rikako
 * Composition & Arrangement: Ichikawa Jun
 * 1) Brush Me Up!
 * Lyrics: Mutsumi Sumiyo
 * Composition & Arrangement: Tanaka Hayato

Blu-ray (Limited Edition)

 * Hanauta to Mawarimichi (Music Video)
 * "Act 2" Behind The Scene