Ore Igai Dare Mo Saishu Dekinai Sozai Na No Ni "sozai Saishuritsu Ga Hikui" To Pawahara Suru Osananajimi Renkinjutsushi To Zetsuen Shita Senzoku Madoushi, Henkyou No Machi De Slow Life Wo Okuritai. - Chapter 3

Is it even possible for someone to be this ungrateful? If he was such a ‘bad’ assistant why didn’t you hire someone else?