“And from this day on, I claim Lee Sibek as mine.”

Prince Lee Sibek, who values appearances above all else, once took in a servant boy named Sakwol and even came dangerously close to crossing the line with him—only to cast him out and quickly marry into nobility. But a few years later, when a rift to another world opens and monsters pour forth, that same lowly Sakwol awakens as the strongest Guardian….

Original Webtoon