Their romantic involvement, though forbidden by the Professor's rules, creates early friction and endangers the plan.

Since you're diving into (Money Heist) Episode 1x02, "Imprudencias letales," You can watch the full episode on Netflix . Analysis of La Casa de Papel: Episode 1x02

To confuse the police, the robbers dress all hostages in identical red jumpsuits and Dali masks , making it impossible for snipers to distinguish between the criminals and the innocent. III. Character Dynamics

The gang reveals they have Alison Parker , the British Ambassador's daughter, as a hostage. This diplomatic complication forces the police to halt aggressive entry plans, effectively buying the robbers the time they need to print their own money.