你曾经有过21天的时间告诉别人你爱他们吗?根据某人暗恋的真实故事改编。
Have you ever had 21 days to tell someone you love them?
Based on the true story of someone secretly in love.
《21天理论》的上映日期是2022-08-07(泰国)。 《21天理论》的别名有:21 Days Theory / 21天定律 / 21天抓住你 / 21 Wan Mee Chan Mee Thoe。