Part of Baekyun’s Magazine Interview with W Korea and Suho’s interview with Allure Magazine were they both mentioned Sehun.

Q: Soon, it’s time to celebrate the 8th anniversary of EXO’s debut, so let’s talk about when history began. Vocal, but the first time you had to digest a difficult dance, how was your heart?
BH: I just felt a little greedy. I do not want to be remembered as a person who cannot dance. Fortunately, for me and Chen, who joined the team lately, the members would teach until dawn. Kai took Chen and Sehun took me. While confronting who taught better and better. I grew a lot while practicing together.

Q: Out of all the members, who knows Suho the best?
Suho: Sehun. He’s the closest to me. Sehun was the baby then.
Q: What about the member that Suho thinks he knows best?
Suho: Sehun, of course.