My Store's Pets Come from Outer Space

'''This is a magical pet shop. All the little animals sold here are exceptionally intelligent. Pet owners are horrified: Shop owner! The little corgi can actually solve math problems, ahhhh! It stomped all over my test paper with paw prints, and every single one landed on the correct answers, dammit! I feel like my IQ is lower than a dog's, ahhhh! Shop owner: Calm down, it's just a coincidence. ... The shop owner looks at the pile of fluffy creatures before him, feeling utterly exhausted. Can’t you guys at least pretend to be normal pets and stop causing trouble every single day? Seriously! [Reading Guide] ① The male and female leads get married right at the start. The male lead i...