Intaishita Ossan Kenja Daga Manadeshi ga Tsuihou sarete Kita no de Shoushin Ryokou ni Tsureteiku: Slow Life na Tabi no Tsumori ga, Nazeka Sekai Saikyou no Shitei ni Natte ita

"Shall we go on an adventure, like in the old days?" Although he was an orphan, Roge trained hard and became known as the “Sage.” His beloved student, Liliane, suddenly came to visit him. "Roge-sensei… I… have been expelled." Liliane has been employed as a royal court mage, but after being...

Source: MyAnimeList