Invaders of the Rokujouma!? S01 E06 Culture Fest and Rhino Beetles!?

Koutarou and the others fight over their points to try to come up with a idea for the theater club. Theia's the "Silver Princess and Blue Knight" gets picked. Sakuraba Harumi gets picked for the Silver Princess role, and practices with Koutarou, when Theia sees the real princess and knight within them. Meanwhile, Yurika brings a certain something into the apartment...