Shinryaku! Ika Musume - Vol. 5 Ch. 90 - Isn't It a Hero Show?

[MangaDex]

 

[Glomoro]

Plot twit: that wasn't even a mask, Chizuru can just make her face look that way with killing intent.

 

[OmarAlsoBilly]

The conductor dropping the "nice person" facade reminded me of the pink haired girl (Chizuru, I think?) from Yuru Yuri