My Bromance 2: Movie Edition

Five years have passed since Golf "passed away". Bank has never forgotten the love and sacrifice from his step-brother. On the day of his graduation from a university in Chiang Mai, Bank found out that Golf is actually still alive. The two brothers will finally meet again with many unanswered questions during those five years, in a time where society has changed. And their new and old friends are ready to help them grow their love tree again.
(Source: LazySubber, edited by Baddie from MDL)
~~ Cut version of the series.