When I returned home, I found a mysterious man. He's a ninja who's been in my family for generations.He told me that he was going to live with me and protect me... an anachronism.I would rather take action...

Having grown up in the same household, Shin Chaon and Moon Sehan were once inseparable. However, everything changes after the two reach adulthood. Between attending college classes, Sehan is busy learning the...