An Evil Dragon That Was Sealed Away For 300 Years Became My Friend300-nen Fuuinsareshi Jaryuu-chan to Tomodachi ni Narimashita; An Evil Dragon That Was Sealed Away for 300 Years Became My Friend; 300年封印されし邪龍ちゃんと友達になりました; Sellada por 300 años y me volví el amigo de una dragón malvada; Una dragón que fue sellada por 300 años se volvió mi amiga

Youta wanted a friend, so *obviously*, he magically summoned one.He didn't quite count with the fact that he'd summon Mumu, a mighty and evil dragon girl, notwithstanding that due to hundreds of years of imprisonment, she's **very** needy, **very** weepy, **very** clingy, and lonelier than the button "9" on a microwave oven.
Chapters 1-13 are unchanged from pre-serialization and are not mirrored here.