"Tsugunai" (つぐない; meaning "atonement" or "expiation"), is a song recorded by Taiwanese singer Teresa Teng.

The success of the song in Japan brought Teresa Teng to the international stage outside of the Chinese-speaking world, especially in Asia.

[8] Owing to her past passport scandal, a number of his colleagues weren't keen about promoting her upcoming album, regarded her as a jinx to music rating.

Under these circumstances, he was compelled to make the right moves strategically to overcome Japanese music chart behemoth and made the new album an extremely successful one.

[8] After this massive victory since her last 1974 hit song as a debutante in Japanese music scene, Taurus Records' confidence grew and went on next two years on two successive wins.

[12] This was more than her 1974 debut bilingual hit song "Kūkō" / "Qingren de Guanhuai" (空港 / 情人的關懷; "Airport" / "The Care of a Lover") that sold 750,000 copies globally.

[8] It also charted on the Oricon Singles Chart at 6th place for 43 weeks,[4] which also tied with another popular 1986 bilingual signature song "Toki no Nagare ni Mi o Makase" / "Wo Zhi Zaihu Ni" for the same 6th place but held position longer for 57 weeks.