Ryuji's mother called Hayato to ask about the quarrel between Ryuji and Tatsumi, and Hayato decided to go to Nagoya after hearing that. After receiving a report about the Nagoya branch, Higashi Subaru decided to take the Tokaido Shinkansen under the name of a business trip. Hayato suggested that the Ryusi brothers fight each other, and use the silent better than the sound to understand each other.