Nurarihyon no Mago OVA

Set roughly a century after Otome Yamabuki vanished, Rihan Nura has steadied himself and returned to his duties as the Nura Clan’s leader, focused on shaping a more peaceful coexistence between humans and youkai. Even with the clan’s daily responsibilities pressing in, he keeps an eye on those around him—and notices when Setsura is quietly troubled.

Hoping to lift her spirits, Rihan brings the clan to a hot spring getaway. There, Setsura finally reveals something she’s kept to herself: long after Otome left, she encountered her once more. Along with that meeting comes a message Otome meant for Rihan—one that hints at a deeper truth behind her disappearance.