The atmosphere is very good. it suits her! She likes genres of Kancolle, Idolm@ster, vocaloid, and others. And actually she is challenging various cosplays. These are so cute.
The "Fate" series has a history of 13 years, which has been released from TYPE-MOON. Mash is a character of the smartphone game "Fate / Grand Order(FGO)". Incidentally, English version has been released for FGO.
Cosplay pickup: Fate/Grand Order: Mash Kyrielight