But Always (Chinese: 一生一世) is a 2014 Chinese-Hong Kong romantic drama film directed by Snow Zou.

The school bully assigns Yongyuan to follow Anran, which is a role that he happily accepts for the next 20 years.

Anran and Yongyuan bond as they share the common tragedy of losing their mother in the same earthquake.

A decade later, Yongyuan returns to Beijing and encounters Anran, who is now a pre-med student.

Yongyuan gets involved in some shady business to raise money for Anran's post-graduate education.