Nine Emperor Gods Festival, is a nine-day Taoist celebration beginning on the eve of 9th lunar month of the Chinese calendar.
Primarily in Southeast Asian countries like Myanmar, Singapore, Malaysia, Thailand and also the Riau Islands.
The red turtle bun are sold in temple during celebration.
Story of turtle bun:
The Nine Emperors are the Chinese version of Robin Hood, who during the Qing dynasty robbed the rich and gave to the poor. According to legend, they were cornered at a seaside by soldiers, but a giant red turtle came to their rescue and ferried them to safety on Tow Boo Keong island.