Mephisto might regret what he did here in the future. After all, he just introduced iruma to a race with potential to become his army/assassin army. Like that one MC who created a rabbit folk assassin army without realizing it. hahaha
Quick question: Is the manga also almost over? Since, Final Arc in LN is volume 18 and manga says its in volume 16 or 17.
Sorry I'm new at reading manga. And I haven't read any LN.