Intai shita Ossan Kenja da ga Manadeshi ga Tsuihou saretekita node Shoushin Ryokou ni Tsureteiku: Slow Life na Tabi no Tsumori ga, Nazeka Sekai Saikyou no Shitei ni Natteita

Roger, a retired mage so powerful he eventually gained the title "Sage," is surprised when his beloved apprentice Lilliant suddenly returns. She became a court mage in a neighboring empire, only to be worn down by harsh working conditions, toxic relationships, and an abrupt dismissal she doesn't even understand. To comfort her, Roger suggests a relaxing journey of healing along the roads they once walked together. It should have been nothing more than a quiet trip down memory lane, but with two extraordinary talents on the move, they start creating legends wherever they go.

(Source: Webtoon Entertainment)