personnel ; tokyo jihen ringo sheena vocals ukigumo electric guitars and acoustic guitars , backing vocals ichiyo izawa keyboard instrument , synthesizer , electric guitars on '' senkō shōjo '' seiji kameda bass toshiki hata drums , percussion ; additional personnel makoto minagawa synthesizers on '' senkō shōjo '' charts and certifications charts sales and certifications chart procession and succession content and structure the album , much like many of sheena 's solo works and the band 's previous albums ( such as shōso strip , adult ) , features a symmetrical track list .