Insert song

Insert song uses famous songs from Showa era.

Tokyo pentatonic (1 sentence? ED, sentences 4, 12 and 13? ED)

Lyrics: Miyata Takashi, Composer: Gutian Zheng, Song: Three Waves of Spring Beauty, Ten Generations (2 words? ED)

Lyrics: Tetsuo Miyagawa, composer: Masao Koga, song: San Tian Ming.