The drama is based on a true story of Yamaguchi Hayato (25), a young man who learns he has a rare illness known as CIDP, which affects the nervous system. He begins to lose the functioning of his limbs, but he is determined to fight the illness with the support of his wife and his 2-year-old daughter, Myu-chan.
| Actor | Role |
|---|---|
 Jun MatsumotoHayato Yamaguchi | Hayato Yamaguchi |
 KarinaAya Yamaguchi | Aya Yamaguchi |
| RRina HatakeyamaMyu Yamaguchi | Myu Yamaguchi |
| RRina HatakeyamaTaro Iwade | Taro Iwade |
 Bokuzo MasanaShuya Takagi | Shuya Takagi |
 Kenji KasaiYasuyuki Yamaguchi | Yasuyuki Yamaguchi |
 Tetsuo MorishitaYukio Sakurai | Yukio Sakurai |
 Eri WatanabeMihoko Sakurai | Mihoko Sakurai |
| YYoshie OhtsukaNobuko Yamaguchi | Nobuko Yamaguchi |
 Yutaka MatsushigeKazuo Kurose | Kazuo Kurose |
 Hajime YamazakiKeigo Nagamachi | Keigo Nagamachi |
 ChisunMina Sato | Mina Sato |
 Tatsuya NomiNot listed | Not listed |
| AAyano OkuboNot listed | Not listed |
| YYoshinori KoNot listed | Not listed |
 Yuki TeradaNot listed | Not listed |
 Narumi NatsuakiNurse | Nurse |
| MMachiko NakamuraNot listed | Not listed |
| TToshiyuki FujiwaraNot listed | Not listed |