Insane Quiz Show Season 2 (이 세상 퀴즈다 ), also abbreviated as "이세퀴" and "IQS S2" is a South Korean web variety show hosted by BTOB's Illhoon, ASTRO's MJ & LOONA's Chuu. The 3 hosts welcome 2 guests (usually idols) in the "IQS House" and challenge them to various games, for 2 episodes. Illhoon (who was already the MC in season 1) is the "landlord" of the IQS House, while MJ and Chuu are "tenants". The mascot of the show is "E-bird", a bluebird. Its face spells "이세퀴" ("E-Se-Ki") - it has an "E" as an eye, a triangle as a mouth (semo=triangle) and a ㅋ as the other eye (kieuk=ㅋ).