Odayaka Kizoku no Kyuuka no Susume.

Lizel, a brilliant young chancellor of a powerful nation in a fantasy realm, suddenly finds himself transported to another world—mid-conversation, no less. Unfazed, he decides to treat it like a vacation and become an adventurer! Teaming up with Gil, a lone wolf top-ranker, Lizel uses his wit, charm, and intellect to navigate this new world. So begin the whimsical adventures of a noble off duty!

(Source: Crunchyroll)