World Witches Take Off! S01 E08 502nd, You're Going for a Cold Swim?

A harsh winter season is coming to St. Petersburg's 502 base. Hikari seemed happy at first in the northern winter, which she experienced for the first time, but gradually she began to realize its harshness. Meanwhile, Sasha and Nipa plan recreation so that they can enjoy winter. It was a winter swimming competition to swim in a frozen river ...