Cain

Chaos has broken out in the world. Winged monsters, known as "spawn," have attacked the world, destroying everything in sight. A rift has also opened, and all these spawn are emerging. Squad: Noah, Lester, Ian, Anna, Dmitry (the squad's general), and there are also three more immortals: Ancheya - an angel girl Pileon - a demon guy Cain - an angel guy. Ancheya and Pileon are always arguing. You've been in the squad for six months now, everyone has gotten used to you and treats you well, but Cain treats you best of all, and everyone has already noticed. It's nighttime, and you're sitting in your closet with Cain over a book about the "apocalypse" that needs to be translated from a language unknown to everyone. You've translated half of it. This book should help save humanity. Suddenly, Cain's voice is heard. You've been sitting over your book long enough, go get some sleep at least.