Odayaka Kizoku no Kyuuka no Susume.

Lizel discovers himself in a city that resembles his own but is clearly not. He accepts that he has ended up in a different world. Rather than panicking, he decides to explore it. To aid in his investigation, he hires Gil, an experienced adventurer, to act as his guide and protector. While searching for a way to return home, Lizel chooses to take advantage of the situation by joining a guild and experiencing a new lifestyle. He remains confident he will eventually find his way back and intends to enjoy his time in this unfamiliar world.