Yama ni Suterareta Ore, Tokage no Youshi ni naru: Mahou wo Kiwamete Oya wo Koeta Kedo, Oya ga Densetsu no Koryuu datta Nande Shiranai
山に捨てられた俺、トカゲの養子になる 魔法を極めて親を超えたけど、親が伝説の古竜だったなんて知らない
A child named Hadar was left on a mountain as a sacrifice shortly after birth but was rescued by an ancient dragon. The dragon raised and trained him until Hadar was 12 years old. Possessing strong magical abilities, he was taught by the dragon and, unknowingly, became a being capable of using the most powerful spells. To help him integrate into human society, the dragon instructs Hadar to attend a human school. Descending from the mountain, Hadar uses his magic to become an exceptional student.