Aikatsu Friends! - Season 1 Episode 31 The Legendary 101st Match!
Overview: With one day remaining until the deadline to enter the Best Friends Cup expires, Aine and Mio decide to re-debut after taking a break from their activities as Friends. However, the two do not want to restart with half-hearted feelings, so they take a chapter from Love Me Tear's story and attempt to complete a Legendary 101 Match battle.