Nurarihyon no Mago Temporada 1 Episódio 6

Rikuo and his friends reach the mountain retreat. While the girls are in the onsen Rikuo, the boys and Tsurara set off to look for sprits. Kana decides to follow them since shes jealous of the relationship Rikuo and Tsurara share. Meanwhile Guyki orders his minions to kill them all. After being separated from the group Tsurara is attacked. Just as shes about to be killed Rikuo saves her in his night form.