I'd consider myself a proud peddler of Ikuhara pills to unsuspecting innocents and I have to admit that even I found the first episode or two of Yuri Kuma Arashi just a tad bit inscrutable.
Jexhius and others I've seen on twitter carry a suspicion that the early episodes suffer from the show possibly being written as two cour but being compressed into a single cour once it went into production. I don't know if it was ever followed up on and an answer was found one way or the other though.