And here is the matter with OP abilities or cheat capabilities, Until the concept is to NOT use it, like some tales, then if a protagonist decides to become a complete wimp and never use it, it tends to make the Tale pretty monotonous. This manga is rather problematic http://johnnydntzg.bleepblogs.com/901419/isekai-meikyuu-de-dorei-harem-things-to-know-before-you-buy