Character Description: Kosuke Niwa
Kosuke is Daisuke's father who at the start of the anime is away journeying from Daisuke and his wife Emiko. He returns, few years later, and gives Daisuke a Rutile ring.
Even though Kosuke has returned home, he is still searching links and secrets between the Niwa family and Hikari family, and therefore links between Dark and Krad.
Although Kosuke doesn't get introduced until later on in the series, he does however,get seen in flashbacks in an earlier episode.