The manhwa was good, the novel was better this novel was amazing when i read it but when the manhwa came out they were censoring what actually happened in the novel in the novel he killed the girl who followed him into the dungeon even tho he told her not to follow him, he killed her to lvl up to i think lvl 50 which gave him the new summon the manhwa kept her alive, when the elf girl came to earth and saw the mc in he manhwa she kowtowed whilst in the novel she kissed his shoes
2 possibilities, that girl from earlier who hates his master wants them to lose so she made her disciples disguise, and lure our mc away to kill him, or shapeshifting demon