Kamisama Gakkou no Ochikobore / Отстающий ученик школы богов

Modern life means modern solutions—even to supernatural problems. So of course the government would have a classification system, special schools, and licenses for people with mysterious powers. Any manifestation of a miracle is enough to be called a Himiko, but only those with full certification may use the title of god. And high schooler Nagi is in serious need of a god! The death of her grandmother has left her family shrine devoid of the necessary divinity, and her hopelessly shut-in Himiko brother isn't looking promising. But if Nagi isn't careful, her search for a god might end with her finding more than she bargained for...

(Source: Yen Press)