Isekai de Ikiteiku Houhou (Light Novel)

Since birth, Yoji Tanaka, a 27 y/o Job Salesman, who in what ever he does "first thing first" is his motto, without understanding anything was blown to another world. The place that he arrived at was a middle aged kinda frontier village. It's a story where the situation is though he neither knowing the lifestyle nor the language, using a doubtful cheat called skill bonus, somehow the timid mc was able to live through in a world dominated by monster using present-day common sense and little trick.