Naruto’s son has been working hard lately with Konohamaru, Sasuke, and Kakashi. When Mugino recently oversaw him in the God Tree Clone Arc, the fans saw a comedic dynamic between the pair. Although they mostly just annoy each other there is still mutual respect between them. In the latest episode of the show, the viewers were made aware of Mugino’s tragic past.
Read Official Blog Post - Boruto: The Tragic Origin of Boruto's Mentor - Mugino