Credits:
Undertale by Toby Fox
Blue Archive by NEXON Games and Yostar
sensei!sans by me
sprite,background,music by me
animation by me
Motifs:
Undertale - OST 015 sans.
Undertale - OST 024 Bonetrousle
Blue Archive - OST 002 Luminous Memory
Blue Archive - OST 059 RE Aoharu
Phase1 -
https://www.nicovideo.jp/watch/sm42913421