Nurarihyon no Mago Temporada 1 Episódio 2
An old ally of the Nura Clan visits to have a discussion about Rikuos role as future head of the demon clan. Zen has been a long-time supporter of the Nura Clan, a play-mate with Rikuo when he was little; with a weak constitution their family has lent the Nura clan their support in return for protection. Rikuo once again evades the question, explaining he does not wish to become their leader, and Zen leaves doubting the future of the Nura household.