Staying at his family's ancient abode, Akihiko Odagawa is determined to unravel the enigma of a rumored curse that brings about untimely demise of male successors in his lineage. One fateful night, Akihiko finds himself transported 100 years back in time through a time slip. There, he encounters Eitaro, a Meiji Era scholar entangled in the same mystery. Joining hands, they push beyond the confines of time and space to unearth their family's covert truth.