Lee Chae-min, Ryu Da-in Celebrate with Lovstagram Cakes  조선일보Celebrity couple Ryu Da In and Lee Chae Min’s matching birthday posts leave fans in awe – See pics  The Times of IndiaLee Chae-min and Ryu Da-in celebrate birthdays with matching love-star cakes – CHOSUNBIZ  Chosun BizLee Chae-min Shares Gratitude for Drama and Affection for Ryu Da-in  SportsChosunLee Chae-min and Ryu Da-in: From Couple Rings to Cakes, Their ‘Lovestagram’ Showcases Sweet Public Romance  매일경제