艦娘シューアイスを食す

Eating shipgirl Chou Ice
A dessert with ice cream stuffed in a puff pastry. Note it's "Shuu" in Katakana and to make the pun on the character, but says "Chou" in Latin characters on the wrappers themselves, and looking it up, they're also called "Choux Ice". They are having a collaboration with KanColle characters associated with different flavors.