went to google it. She seems to call him onii-chan, so she may be the younger siblingKoharuko is hilarious. She calls Yotsuba's dad her "brother". Is she his older or younger sister?
They're planning to destroy the earth??? Did you read the chapter? Now go thanks Yotsuba for saving usWhat are these aliens even doing? Cosplaying for no reason?
You know what they say about girls with big feetforget the aliens. look how big koharuko's feet are at page 32