Funeno Kureichirou

Your suspect.

A hired servant who runs two abandoned inns on Ooejima, the Crescent Moon and the Yaegaki. He is in charge of taking care of the meals for the attendees, making the preparations for the memorial service and all rituals carried on the island. He leaves nothing undone and is often seen running around as he’s very busy. He is usually laid-back and the purity of his heart is such that even the island’s butterflies are fond of him.
…For some reason, he only fears Oosaki.