EndlessroLL is Yamashizuku's first major album released on December 19, 2012. It consists of 18 tracks, several of which are remastered, and also includes several straps and a mousepad designed and illustrated by Suzunosuke. The album ranked number 14 in the Oricon weekly sales chart its first week of sales, and appeared a total of 5 times in the ranking.
Notable songs from the album include "Soundless Voice", "Karakuri Burst", and "Bad End Night". New songs from the album includes "Meguru Sekai no Requiem", the last track to Hitoshizuku-P's Synchronicity Series, and "Kagami no Mahou", an answer song to "Mahou no Kagami" previously featured in the compilation Kagamination.