Niwa, Kosuke

丹羽小助

Emiko's husband is Kosuke Niwa, a shy and thoughtful man. He married into the Niwa family and took the surname, though he is not a Niwa by birth. He possesses extensive knowledge of magic and has traveled frequently, which is why he has not seen his son for many, many years. Upon his eventual return, he gave Daisuke a Rutile that allows him to absorb all damage received by Dark.
He is currently searching for the secrets connecting the Hikari and the Niwa families. While he can be very serious when necessary, he generally appears clumsy, much like his son. He is easily embarrassed by his wife, Emiko, and her antics. Kosuke was also one of the few characters to arrive late in the series, and his true surname remains unknown.