There was an episode before a friend watched anime. A man and a woman got lost in a snowstorm on their way home, then built an igloo to stay and woke up the next day.

It may be Makoto Shinkai's "five centimeters per second"

Supplement: No ... I was wrong. They didn't build an igloo ... I'll think about it. ...

Look at the plot, in which the male host Sato You and the female host's sister shoot jasmine flowers, but the animation has not been played here ... This is the plot of the cartoon. ...

Jasmine had an accident when she attended an HP party with her sister in winter. When she took refuge in the igloo, she exchanged candy balls with Sato.