Hibiki, a high school boy, was summoned to another world and given a number of super-cheat skills, although they weren't suited for fighting. As he tries to return to his original world, he meets a hero and a sage who were being sold as slaves. Hibiki tries to save them by using his cheat skills, but...?
the MC gets dumber the more experienced he gets ... if you have Appraisal ... use it on everything and everybody = especially strangers that 'bunp' (pickpockets etc.) into you and those in hostile environments ... the MC should win multiple Darwin Awards - never accept 'food' from strangers before Appraisal. the Plot Idiocy in this is way too strong for me to continue with - the MC might improve later but I no longer care.