Kazoku no Uta

Masayoshi Hayakawa (Joe Odagiri), who has no work as usual, is about to run out of money, and is about to be kicked out to the company housing. Justice complains that the reason why it does not sell is that there is not enough sales, but Kosuke Miki (Yusuke Santamaria), who is also in charge of the newcomer, will be out of charge for a week, and instead, the new manager Seiji Akashi (Hideo Ishiguro) Came.
Kokoro Osawa (Sugisaki Hana) and Nanami Takamura (Chika Arakawa) in the same class called each other 'heart friends' and were in a relationship to keep an exchange diary. While delighted with the good relationship, there are many confusions such as being blamed for not replying to the email immediately and having trouble commenting on the secret that Nanami writes on the blog.
Akashi has taken on the job of appearing as a guest on a national radio program. Justice accepted when he heard that he could play a song in the program and promote it online, but when he appeared, it was a corner where he could consult with listeners about child-rearing as a father. Justice who returns during the live broadcast without hearing Akashi's restraint. Around the same time, Kokoro came to a general store with a good friend group such as Nanami and Miyuki Kikuchi (Asumi Kikuchi). Nanami proposes to finish her shopping and enter the restaurant, but Kokoro is concerned about Miyuki who has run out of pocket money due to the purchase of matching goods that Nanami invited, and takes everyone to 'nanja'. .. Nanami stands up as she sees Kokoro and Miyuki telling a secret story. When the hearts went to 'nanja', there was a drunken justice ...