A wider kotatsu for the expanding submarine forces.
Dechi~!!Nano~!!What are you all up to...?Nimu too~♪After diving down into the seaYou just have to dive into the kotatsu dechi~♪It's so warm, Decchi~♪Ro-chan's diving in too~♪Erm... It's a little cramped, but let's all have fun diving in!Dechi!?We're mushed in~!Dechi?Iku's diving in too~♪It's not fun at aaaaall!!!