It was the part where Mei went shopping and met Shun Kazama on the way.

Song: "上を向いて歩こう" (Chinese translation: walk forward with your head held high, move forward with your head held high)

Lyricist: Naga Rokusuke

Composer: Nakamura Hachidai

Singer: Sakamoto Kyū

Remarks: It is Sakamoto Kyū’s representative song. It was released in Japan in 1961. When it was released overseas in Japan in 1962, the song title was changed to "Sukiyaki". So far, it has been covered by many singers in Japan and overseas. For details, please refer to the Wikipedia entry "Go forward with your head held high", which lists many artists who have covered this song).

There are lyrics in Japanese and Chinese under the Baidu Encyclopedia entry "Moving forward with head held high". You can also search for video and audio resources by Chinese translation. Since the links are easily blocked, they are not published here. You can find this song by searching for "Sakamoto Jiu" in the Kuwo Music Box. Or you can give me your email and I'll send it to you. It's from the original soundtrack of "The Hillside Where Poppies Bloom".