The grave of a man named Chou Shakurin has been disturbed in the Chinese countryside. A girl named Houhou, claiming to be the granddaughter of the grave's occupant, appears there. At the same time, Chou Soran, a student at a college in the city, has returned to the countryside to visit his grandfather Shakurin's grave.
Are you... m-my older sister?!
أأنتِ... أختي؟
Du bist … m-meine Schwester?!
¡No me digas que eres mi hermana!
¡No me digas que eres mi hermana!
Tu es ma grande sœur ?
Non sarai mica... m-mia sorella?!
V-Você por acaso é... 
 Minha irmã mais velha?!
Получается... ты моя сестра?!