Dolly Kill Kill, Volume 1 (Dolly Kill Kill #1-15)

Iruma Ikaruga is living his best high-school life... until mascot-looking aliens from another world invade with their flesh-eating bugs, seemingly hell-bent on destroying humanity violently and effectively! On that fateful day, Iruma loses everything... his normal life, his best friend, and his crush... until six months later, when he catches a glimpse of her again.

Is all hope for humanity - or just Iruma himself - truly lost?