Girls & Tank

Girls & Tank — an anime series on which episode 6, “Kaikai Love Climax”, is centred. Nakano Mitsuteru is wearing a t-shirt with the show title and a silhouette of one of the main characters, and Erika Aoyama reads a concept art book called Girl's Tank Top!.

Apparently there are six main characters in the show, out of which the helmet-wearing genki and the long-haired kuudere are the leads since they are used the most in advertisements and on merchandise. The ones mentioned by name in episode 6 are “Rosehappy’s Crubaider” and “Klaklara’s T-34”.

“Girls & Tanks” is a wordplay on “Girls und Panzer”, which is an actual anime series. Rosehappy is Rosehip, Crubaider is Crusader, Klaklara is possibly Katyusha, and T-34 is always T-34.