Misunderstandings further threaten the harmony among the K4 members. Even the weather is on a rampage, causing a landslide near Karuizawa. Meanwhile, an employee of the Japanese Organs Transit System tells station attendants that she must get an organ to the hospital in Maebashi as quickly as possible for a transplant operation, but both railways and roads are closed due to the heavy rains leaving the K4 members to make the journey in an EB42 draisine.