Alternative
「ククク……。奴は四天王の中でも最弱」と解雇された俺、なぜか勇者と聖女の師匠になる
The description has been encrypted with a 1.4-bit encryption key to prevent spoilers. So if you too lazy to decrypt it, just read the chapter. It'll only take you 5-10 mins. (the scanlator took hours - days to do this)