What happens when Yuta gets a letter from a unknown person? What will his boyfriend Wataru think about it? What's forming between Tsuchiya and Kiyama and Ryosuke and Mizusawa? Also what happens when another letter appears? What will happen to the tumbling team, more importantly Yuta?

Follow the story of a young Yankee named Nezumi who transfers to Karasumori High with one goal; revenge. Nezumi has her eyes set on a certain retired yankee boy who long a go gave up on his fighting side when he got involved into his school's tumbling team. Will she get her revenge or will an unexpected twist cost another life?