3000-nen Fuuinsareshi Jaryuu-chan to Tomodachi ni Narimashita

Yuuto Kuroma is a fourteen-year-old boy with his head firmly lost in the clouds. A chronic sufferer of chuunibyou, he fills his days with grandiose fantasies of hidden powers and a secret, dramatic destiny—so when he idly doodles a magic circle on a passing whim, he naturally expects nothing to come of it. To his complete astonishment, the scribble actually works, dragging the ultimate Dragon King out of legend and into his everyday life. The being who answers the summons is an evil dragon girl who has spent the past three thousand years sealed away from the world in profound loneliness. However fearsome her legend may be, what she has truly been starved of is companionship, and against all odds, she and Yuuto find themselves becoming genuine friends. What began as a careless doodle now carries consequences far beyond anything Yuuto could have imagined. Before he can even begin to grasp the situation, the fate of the entire world is casually placed in the hands of one thoroughly unsuspecting boy—hurling an ordinary, delusion-prone teenager into an extraordinary destiny he never asked for.