Seven-year-old little junior sister Xie Suisui hears from her master that her five senior sisters are not doing very well out there, so she brings over a dozen copper coins down the mountain, determined to relieve them one by one. Little does she know that the eldest senior sister holds a noble status, the second senior sister has a resounding reputation, the third senior sister is unparalleled in alchemy, the fourth senior sister commands ten thousand demons, and the fifth senior sister is even a legendary figure guarding a mysterious ancient city alone. Innocent and lovable Suisui makes countless jokes along the way, and with her purest sincerity, brings her long-separated senior sisters back together again.