I'm pretty sure the two kids between Unzan and Kaguya are Yukari on the right, and Okina in the middle, judging by her hat. If you think it's someone else, feel free to make the change.
Eeek~You got snacks, right~I wish it was Christmas already~Gyaaah!He was pink and his face was scary, so he probably wasn't Santa.Eek~It's even colder today...The next morningHahaha...Ahrattle