The maid's affection for her master came outta nowhere and there's no explanation for it.  Arata is an idiot for not noticing the discrepancies between the game and reality (MC was just laying low minding his own business but Arata decided to exact 'revenge' for no f**king reason). Laila seems to be on the verge of cheating on the MC but the moment he broke their engagement she was ridden with sadness and guilt. MC was just a 'normal highschooler' in his past life yet he became a fierce warrior after just a bit of training even though the character he possessed was someone who looked down on martial arts and only used magic (Is the MC f**king Saitama or something?!) The heroine's affection for the MC is also weird. Author likes to create a sense of mystery but I think he was just too lazy to explain his own plot holes. There's also too many characters after only 38 short chapters and not enough character building/development for any of them.