Tsugumi, who lives in a small seaside town, has been in delicate health from birth. Her parents spoiled her and she is rough and selfish. However, a few people are attracted by her beauty and unique character.
Maki Maki, Sebuki Suzume, Beppu Tsukasa and Iemori Yutaka happen to meet and form a quartet. They even begin to live together in Karuizawa during the winter, but there is a big hidden secret.
