Tập 44: Kotaro và Dunk đến thăm một người đàn ông bí ẩn, hóa ra là đối thủ của Go, Tendou.

44

On a hot day, Kotaro and his friend, Dunk, are invited by a mysterious man to his own house, where he has his own goods and even a personalized organizer. They later find out the man is Go's old rival Tendou who holds them captive as well as unleashing his cyborg dog for Kuro and Mi to fight. (Source: Wikipedia)