SIGMA MEMORIA (シグマメモリア) forms in Tokyo (東京)東京.
Drummer Hibiki (響) ends support.
Drummer Jun (じゅん) begins as support drummer.
SIGMA MEMORIA (シグマメモリア) pauses activities indefinitely due to vocalist Labi (ラビ)'s health problems
ONEMAN live is held.
Drummer Jun (じゅん) officially joins.
SIGMA MEMORIA (シグマメモリア) was a visual kei band in Tokyo. They were active from 2018 to 2020 and are currently paused.