After safely qualifying to become adventurers Taichi and Rin begin working out of the inn, Mithril, completing the easiest E-Rank quests. Then one day the guild makes its decision to directly entrust them with a difficult quest, holding high hopes for their abilities. The quest is one that D-Rank adventurers have already failed twice - the investigation of a smuggling operation in the slums.
If you enhance yourself beyond that, 
you'll stop being human, right?
،إن قمت بتعزيز نفسك أكثر من ذلك
لن تعود إنسانًا، صحيح؟
Wenn du dich darüber hinaus verstärkst,
wärst du doch gar kein Mensch mehr.
Si te potencias más,
dejarás de ser humano.
Si te potencias más,
dejarás de ser humano.
Se ti potenzi più di così,
Se você for além disso,
deixará de ser humano, né?
Ведь если превысишь лимит,
перестанешь быть человеком.