3000-nen Fuuinsareshi Jaryuu-chan to Tomodachi ni Narimashita

Will the world end if there’s no rom-com? The one who got summoned was the strongest, super easy-to-fluster, and adorable Dragon King. Yūto Kuroma, a 14-year-old with a serious case of chuunibyou, accidentally summons the ultimate Dragon King using a magic circle he had doodled purely on a whim. Wait, seriously? On top of that, due to certain circumstances, Yūto ends up becoming friends with a lonely evil dragon girl who had been sealed away for 3000 years. Now, the fate of the world is casually entrusted to one unsuspecting boy.