Touhou Sangetsusei ~ Visionary Fairies in Shrine. - Vol. 2 Ch. 9 - The Deep Winter Red-Hot Fire Festival

[MangaDex]

 

[Mr_Stizblee]

As expected of a swallowtail butterfly fairy, she migrates in the winter. Can't migrate very far in Gensokyo though so it kinda loses it's meaning.

 

[Superpou]

Guess someone's gonna lose her life privileges. Again.