Oka is the president and founder of the Occult club. Despite how... creepy the club is, their president is actually timid and shy when it's mostly expected that leaders of that type of club are... even creepier amd scarier.

Yes, Oka has seen Ayano sometimes with Taro as she stalks him... but never had quite the courage to confront why Ayano is hanging out with Taro... she can't help but find Ayano's usual blank face... a bit unsettling...