Ryuhime and the Lazy Dragon Knight: Troublesome because my childhood friends are excellent

Regulus, a boy who has overwhelming power but hides it inconspicuously is called lazy by everyone in a remote village. Because it's troublesome, he deliberately fails the exam to become a dragon knight, but is taken to a school with a dragon knight training institution by the hands of three childhood friends who like him! After arriving at the royal capital where the school is located, the party was looking forward to their future lives, but they were attacked by a vicious organization that abused the power of the dragon!? To protect their loved ones, the lazy boy releases his hidden powers in the biggest pinch!

(Source: Earth Star Entertainment, translated)