2 years ago, Kumi broke up with Shuhei and decided to forget everything about him for good. However, after being told that her younger sister, Junko, fall in love with a man and is currently living with him. She was determined to discover who was the man who won her sister's heart. But what will happen when she found out that the man in question is Shuhei, her first love?
| Actor | Role |
|---|---|
 Chieko MatsubaraKada Junko | Kada Junko |
 Akira NakaoKada Shuhei | Kada Shuhei |
 Yuko HamaOkabe Kumi | Okabe Kumi |
 Jun NegamiHanai | Hanai |
 Taiji TonoyamaNakano | Nakano |
 Junko NatsuTamae | Tamae |
 Yōko YamamotoHanai Shizue | Hanai Shizue |
 Reiko AraiKatsuko | Katsuko |
 Yuzo KiuraYoshino | Yoshino |
 Tatsuya FujiKijima | Kijima |
 Meiko KajiRika | Rika |
 Soichiro MaenoAkutsu | Akutsu |
| CChie KanaiLila | Lila |
| OOmura YumiHana Tsuchiko | Hana Tsuchiko |
| HHajime MitamuraSakamoto | Sakamoto |
| MMasami MakiChiaki | Chiaki |
 Yūko TobeNatsuko | Natsuko |
 Tomomi SawaSanjo Madoka | Sanjo Madoka |
| MMayumi MiuraAyako | Ayako |
| HHiroshi IchimuraTani | Tani |
 Yōko NakaNot listed | Not listed |
 Yoshie KitsudaNot listed | Not listed |