shit the tweest! she did remember but she just didn't say it because of some dumb reason! that's in-character though, Pengin is a fucking moron, i can buy that.
i really like the writing of Pengin and Maru's characters but this chapter does feel extremely chaotic in how it juggles between the two couples. definitely feels like it should've been a two-parter like chapter 7 or just dedicate the whole chapter to the side couple so we can get them out of the way, as good as they are.