Reyo (Kamiki) lost the news after learning from Izumi (Nobuko Miyamoto) that Teppei (Ryunosuke Kamiki) and Lina (Elisa Ikeda) eloped.Then, Izu began to tell Reiya about the night when the two disappeared.

March 1965.In Hashima, which is recovering due to coal production in a new area, Teppei is working towards the official start of construction.However, Teppei often went to Nagasaki with Lina for Makoto's clinic, and there were rumors among the islanders that they were suspicious of their relationship.Teppei heard about this from the wise general (Xunya Shimizu) and immediately denied it.But behind that, Teppei and Lina share a secret that cannot be told to anyone.

One day, Asako (played by Sugisaki Hana) was called by Teppei because she had something to say.But on the agreed night, Chaozi did not see Tieping after work...What happened on that night that decided the fate of Tieping and Chaozi?

Moreover, there are huge secrets hidden in the 10 Teppei diaries owned by Izu.The true meaning of blacked out words and torn pages.

Meanwhile, Reo and Izu visit Nagasaki again.There, the two knew what Tie Ping was thinking.Spanning 70 years of time and space, the story of love, youth, friendship and family finally came to a successful conclusion.