High schooler Yuu and his friend Haru get involved in a case involving his childhood friend Kotona, which forces them to go back and forth between another world that is different but is ...

A simple act of kindness always sparks another, even in a frozen, faraway place. When Smeerensburg's new postman, Jesper, befriends toymaker Klaus, their gifts melt an age-old feud and deliver a sleigh full of holiday traditions.