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Artist's commentary
Sans and Yakumo Yukari change costumes!
Information released about collaboration songs by Toby Fox and ZUN for the Touhou rhythm game "Touhou Danmaku Kagura Fantasia Lost"
https://www.famitsu.com/article/202501/29183
Toby Fox will arrange "Necrofantasia" and ZUN will arrange "MEGALOVANIA". Details will be revealed in a broadcast program in February