He dated Bae Suzy since the beginning of 2015 until november of 2017.
He has stated in several interviews that he is interested in dating an older woman.
He can't swim.
He cringe each time he has to act and deliver cheesy lines in romantic comedy dramas, he actually prefers more manlier roles.
He's extremely clumsy.
At the beginning of his career, his stage name was "Lee Min" because his agency thought his birth name was too inadequate. However, as his stage name was pronounced and spelled in the same way as the Korean word "Imin", which also means immigration, made it very difficult for him to appear in internet search results, as time went by he ended up using his original name again.
As a child he was always interested in football, he got to the point where he dreamed of being a football player when he grew up. Unfortunately, when he was in the fifth grade of elementary school he had an injury that put an end to that dream, despite everything, he considers soccer his favorite sport and likes to play it from time to time, he has also mentioned in interviews that his favorite soccer player is Cristiano Ronaldo.
In 2014, he created a web Oppa by the name of PROMIZ to raise awareness and encourage donation for social and humanitarian causes.
He admits that he agreed to star in Personal Preference only because he wouldn't stop laughing while reading the script.
He had his first love at age 20 with a campus friend.
He is not only one of the most recognized stars in Korea but also in the entire world.
In his 20s he was involved in a car accident that could have cost him his life together with one of his best friends Jung Il Woo, he mentions in an interview that the incident made him reflect and meditate on his perspective on life.
He doesn't feel comfortable singing, but that hasn't stopped his rabid fanbase from hearing his voice singing in some of the projects he's taken on.
He filmed a sex scene with Gangnam Blues co-star Kim Ji Soo but the scene ended up in the cutting room floor because director-screenwriter Yoo Ha considered the scene unnecessary to the flow of the film.
His biggest inspiration is his mom.
He has stated in a recent interview that he would do anything for love.
He's always active on the internet, he likes to play a lot of online games.
He used to carry a perfume in his bag because he always wanted to be the fragrant guy.
He has received many offers to appear in Hollywood film productions, but he doesn't consider himself mature enough to take that challenge yet.