2022年上映，执导，由Prat Itthichaicharoen,Jirayu Sahguansin,Patsapon Jansuppakitkun,Tee Khunakorn等主演的21天理论在泰国发行，豆瓣评分和口碑都很不错，21天理论手机在线观看等资源均是网络收集而来。《21天理论》HD1280/HD1080p/BD720P/BD1080P/百度云蓝光高清版/在线观看。
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.
