Gatajou DIY-bu!! is a seiyuu collaboration formed by the main cast of the Do It Yourself!! anime. The group sings the opening song for the anime and is composed of voice actors Konomi Inagaki (Serufu Yua), Kana Ichinose (Miku Suride), Ayane Sakura (Rei Yasaku), Azumi Waki (Takumi Hikage), Nichika Oomori (Juliet Queen Elizabeth VIII) and Karin Takahashi (Kokoro Kouki).