The King's Training.
Virion offers Arthur a means to reach out to his parents, while also offering to take him as an apprentice.
Aired 07/05/2025EP 6 - The King's Training.

2025
The Beginning After the End
After a mysterious death, King Grey is reborn as Arthur Leywin on the magical continent of Dicathen. Although he enters his second life as a baby, his previous wisdom remains. He begins to master magic and forge his own path as the years go by, seeking to correct the mistakes of his past life.
(Source: Crunchyroll)