In total they have 5 series together (so far) but they are really only a couple in two (Hidden Agenda and We are). Since 2022 they have been working together (they were rivals in love in Echante, forbidden love in Midnight Museum and a long-distance couple in Viceversa). Two have a lot of chemistry because they have known each other for a long time. Fact: Boom says that Aou was born to play Tan (We are) the director says the same. Also many of his scenes (mostly kisses) are Aou's improvisations (he was a theater actor and loves to improvise), when you see his kiss scenes, you are going to die
I think some of the behind the scenes were from enchanted (their first series) they weren't a pair in it but got super close and became a pair and Aou when he's around Boom he is really like Tan
