MANGA
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Series Information
FormatMANGA
Chapters544
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Published?
SourceOriginal
RatingPG-13
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Synopsis
Rai wakes up from an 820-year-long sleep and starts his new life as a student in a high school founded by his loyal servant, Frankenstein. But his peaceful days with other human students are soon interrupted by mysterious attackers known as the "Unions." (Source: WEBTOON)
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