Shuuka, who moved from the city to a rural town, spends her time at her grandfather's house because there's nowhere to play. When she complains that there's nothing to do in the countryside and it's boring, her grandfather invites her into the storehouse, saying, "Well, do you want to have some fun with me?" However, Shuuka is excited, and her grandfather suddenly starts tying her up with a rope. "What are you doing! Grandpa, stop!" she cries, but the grandfather ignores her and starts raping his grandson after taking off his clothes and underwear...