Koutou is currently in peace, with the Son family back. Rikuson and Sonshoukou are gathering some fruits for the villagers, as Rikuson enjoys the peace thanks to Sonsaku's efforts, to which Sonshoukou grew teary-eyed. The peace was interrupted when Ryomou Dijeh and Kannei Kampfer, on their jet-skis, terrorised the villages by splashing water on the villages, an capsizing a boat with a village in it. Sonshoukou swears to defeat them. Over at the castle, Sonken, Shuuyu, Taishiji and Kougai are discussing on the suppression of Ryomou and Kannei...