Etna tries to jump off the box to be able to get Flonne completely freezes, but she loses her balance and suddenly starts to fall into the box. At this point, Flonne's body is rather viscous, so instead of making a splash, she hits Flonne's surface with a loud plop and sinks into Flonne's frozen body up to her chest.

"Oh no, Miss Etna! Are you alright?!" exclaims Flonne, concerned that what's good for her might not be so good for Etna.

Etna nods, and tries to hold her arms out to keep aloft. She's not sure how deep she'll end up sinking, and at the moment she doesn't really want to find out. Etna feels like Flonne's body is trying to swallow her, since it's trying to push down on Etna's more dense body.

Soon, Etna's arms start to falter. "G-geez...this cold is making my arms weak. I can't hold on any longer!" she says, as she's forced to relax her arms. This causes Etna to sink further in, up to only her head and hands. She can't even move the rest of her body, which still feels like it's being pushed on by Flonne's body. After struggling for a little, the feeling of being pressed downward starts to be a pleasant one for her, almost relaxing, in fact, and after all her struggling she certain feels like relaxing, even if it means she ends up completely submerged in Flonne's body.

"Heh...I'm getting exhausted, Flonne, so I think I'll just sink right in and get comfortable~" says Etna. Flonne offers no objections as Etna stops struggling entirely. The moment she does...