Saikyou Kyuutei Shinanyaku no Ossan, Tsuihousareta Hekichi de Musou Suru: Maboroshi to Natta Shuzoku no Bishoujo-tachi wo Sodatete Henkyou wo Kaitaku

Hein, a court instructor who had served the kingdom for many years and produced numerous talented disciples, is banished from court due to the resentment of the First Prince, Aidon. One day, while working as an adventurer in a remote area after his exile, Hein receives a request specifically from Julius, the Kingdom's Minister of Foreign Affairs. The request simply states, "Instruct children"... However, the children he encounters under Julius's guidance are all from legendary races—!?