During a dream, 7 year old Yuki is reunited with her sister Iwa (11), who has recently passed away. Together, they share an exciting adventure and along this journey, Yuki is forced to conquer her anxieties. Ultimately, she has to face her biggest fear: to live her life without her sister.

Cityboy Niilas (12) is sent to his mother in Lapland. The only one succeeding in making contact with him is his new sister Suna (11). She takes him on a journey in the magical woods where shy Niilas turns into a wild cloudboy.