Frianche's manga / #revenge(9)

The humans deserve to die, rather than co-living together with witches they decided to exterminate all witches. Superiority complex and arrogance at its finest. Can't wait for that boy to avenge all the witches especially his beloved teacher although he is a human himself...

His twin brother was the first one summoned to the isekai and died. Yeon-woo, the older twin received a diary of his brother 5 years later and awakened. He's becoming OP and wanting to take revenge for his brother