いぇす！ゆゆゆ☆ゆるゆり♪♪ (Yes! Yuyuyu☆YuruYuri♪♪) is the opening theme for YuruYuri♪♪, the second season of the YuruYuri anime series. Composed and written by Seiichiro "Laughing" Sugiura and arranged by Hideki Yoshimi (under his Funta7 alias), the song exudes the cheerful, slightly chaotic slice-of-life energy that defines the series. The vocals are delivered by Nanamorichu☆Gorakubu, the ensemble of voice actresses behind the four main characters: Akari Akaza (Shiori Mikami), Kyoko Toshino (Yuka Ootsubo), Yui Funami (Minami Tsuda), and Chinatsu Yoshikawa (Rumi Ookubo). The original single was released in 2012. The song joined maimai MURASAKi on January 10, 2017, and its in-game background draws directly from the anime's opening animation. It was removed from the arcade version on July 11, 2019, rendering it unplayable on current maimai DX cabinets. Outside of maimai, the track crossed console and company lines, appearing in Konami's pop'n music and later in Sega's ONGEKI SUMMER PLUS as part of a dedicated YuruYuri♪♪ chapter event. The MASTER chart, designed by 某S氏 (Bou S shi), features a notably high Slide-note density, 102 Slides out of 539 total notes, giving players a brisk, pattern-heavy climb at BPM 182.