Kikuchi Kaisei

Private Yamagishi was holding back the enemy nation's invasion all on his own. But after discovering that his commanding officer had framed him for a crime he didn't commit, he decides to abandon his country. Along his journey, a fateful encounter with a half-elf girl awaits him!

Yakumo Tabito, who used to work for a shady corporation, is reincarnated in another world and gains the mysterious ability "Otherworld Guide Map". This is a very convenient ability that allows him to view "reviews" and star ratings of various places, and even instantly teleport to his favorite locations using "area markers"! However, it seems that Tabito's reincarnated body originally belonged to a mysterious adventurer...?