Leo/need is an all-female rock band from the mobile rhythm game Project SEKAI feat. Hatsune Miku. In the game’s universe, the band is made of four estranged childhood friends who were separated after an event in middle school. The four girls- Hoshino Ichika (voiced by Noguchi Ruriko), Tenma Saki (voiced by Isobe Karin), Mochizuki Honami (voiced by Ueda Reina), and Hinomori Shiho (voiced by Nakashima Yuki), later reconcile and bring their childhood band back together.