Yūko invites Watanuki, Dōmeki and Himawari to the park. They arrive and see Mokona, Ame-warashi and Zashiki-warashi. Yūko appears and tells them to make a snowman and then start a snowball fight. The winner can open a treasure box and make a wish. The snowmen come to life and have interesting snowball fight. Watanuki eventually wins, but Yūko tricks him at the last minute, and he ends up serving them all dinner and beer.