1x2 - Invaders of the Rokujouma!?

Corona House's landlady, Shizuka, imposes the Corona Convention on the lot, which causes the invaders to rethink their strategies. Meanwhile, Koutarou participates in the Knitting Society, where its president, Sakuraba Harumi and Koutarou spend their time, away from troubles, but then there's word that four new students will be transferring into his school...