Which Japanese drama are these two pictures from?

Chinese title: My First Love, My First Love that Belongs to You

Director: Takehiko Shinjo

Starring:

Mao Inoue

Masaki Okada

Film type: Romance/Drama

Country/Region: Japan

Dialogue language: Japanese

Color: Color

Main actors:

Taneda: Mao Inoue/Sea Kumada (young)

Kaganouchi: Okada Masaki/Kobayashi Kaito (young)

Kaganouchi Minoru: Sugimoto Tetsuta

Kaganouchi Ryoko: Moriguchi Yoko

Suzuya Akira: Hosei Yoshihiko Tian

Teru Uehara: Natsuki Harada

Ritsu Suzutani: Masataka Kubota

Yuko Tamura: Yuki Terada

Yoshimi Suzutani: Keiko Horiuchi

Ryuzo Suzutani: Manabu Yamamoto

Takahito Taneda: Toru Nakamura

Producer:

Supervisor: Seiji Okuda

Producers: Naoto Hatakeyama, Kenzo Abe

Director: Takehihiko Shinjo

Script: Kenji Bando

Photography: Komiya Yamamitsu

Music: Norihiro Ike

Production committee: Nippon Television Network, Shogakukan, PPM, Toho, Yomiuri TV, D.N. Telecaster, Vap, FM Tokyo

Length: 122 minutes

Plot

The story begins when Tou (Masaki Okada) and Mayo (Mao Inoue) were 8 years old. Zhi, who was hospitalized for a heart disease, was close friends with the chief physician's daughter, Yu, and the two always played in Zhi's ward... One day, Yu heard from his parents' conversation that "Zuo can't live to be 20 years old." . So he decided to take control of his destiny and find a way to cure his illness. Zheng didn't know that Zizhu didn't know about his illness. He kissed Yu Yu gently and said that when we grow up, Yu Yu will be asked to marry him. In the summer when he was 12 years old, he was discharged from the hospital and went on a school vacation trip with Cocoon. At the travel destination, he learned about his fate from the doctor who diagnosed him. Zheng was very shocked, but found that Yu had known the truth for a long time. In order to leave Yu, Zheng went to a boarding middle school. Later, Yu Yu also admitted to this school.

In an attempt to alienate Cocoon, the two became friends...