Good of Serina to bring up the matter without delays. Now it is your turn Kyo to explain how you got the damn condom.
Also love how Anna has gone through a whole emotional spectrum this chapter. Fun doing goffy things at the beach, to being flustered by Ichi's tone, to going full Yandere after Moe's comment and finally surprised in seeing the question Serine asked Kyo.
By the way, i still bet on it being from "Pigman" or something Kobayashi brought.