[There wasn't a lot of elbow room in this shallow cave, this was true. He and Dimitri were all but standing on each other toes, and there was no avoiding accidental elbowing or shoulder bumping from even the most minute movements. Byleth wasn't really bothered by this, though. Dimitri was... warm, and he subconsciously found himself huddling a little closer to him while the blizzard raged outside.]

Allow me to manage the cave entrance. A weak, periodic fire spell will be enough to keep it clear.

[For once, being a highly skilled mage knight came in handy for mundane situations (or, as mundane as being trapped in a deadly blizzard could be). A shame he wouldn't be able to use his magic to help expand the cave, however... he was more liable to destabilise the whole thing.]

As for expanding this cave... let me help. Here. I'll focus on this side, and you the other.

[It wouldn't do to let Dimitri handle all of the heavy lifting, after all. He shifted, trying to squeeze beside Dimitri to help him chip at the snow, but it was... tight. Byleth was practically tucked up against Dimitri's side to fit.]