When they boarded the plane to Medion, Rune of course pretended to act tacky because they were flying 1st class.
As a 'very poor' man, it would be suspicious if he looked relaxed and totally in place when he got on the plane and sat on that comfortable big seat.
Although he admitted to Rose that he often traveled in his job as a fixer to accompany many journalists and researchers to various places around the world, of course, he always flew economy for those jobs.
Rune didn't want to risk getting caught in his lies when he presented himself as a poor man. Aha, not now. He was not ready to reveal his true identity to Rose.
He remembered back then, Aleksis took his expensive watch from his wrist when the man said he would claim that it was a fake watch from China ... hehehe.