I love how the author kept the side stories smutty through semes iMaGiNaTiOn~~ (▰˘◡�...

I'm so confused .I thought the author tracing back to when they first get together but this isn't how it was , didn't they did for the first time in the chief's office (⊙…⊙ )i don't get it

First he accidentally send the message to the chief then the chief called him in the room and so on its correct

The entire side story was before chapter 1 when seme fell in love. Then every night he'd have horny dreams (like when the uke was a maid) and very questionable daydreams (when he almost committed somnophilia). Then one day when he was at his office he got a text from uke (uke was sending it to his friend but was using the company messaging system and sent it to seme) so seme called him in and then said that could do it since he needed someone and then they did it in the office.