The story takes place inside an old library and revolves around a magical bookmark that allows people to travel back in time through the books. Six young individuals find themselves going on an adventure of a lifetime when they encounter each other in the library.
A little bastard who is unconscious, beaten but poses as a master, a violent young girl named Zhang Fei, an airy master obsessed with knitting sweaters A gourmet tycoon who can make dark dishes, a contemporary Mengpo who can manipulate emotions with soup, and a Japanese samurai with OCD, for a lost secret A hilarious showdown of peerless masters.