Co-renting life creates high-frequency ambiguity, and the dilemma of workplace newcomers creates realistic resonance. The male lead changes from 'She is too troublesome' to 'No one is allowed to bully her'. The female lead changes from 'I cannot rely on others' to 'So being firmly chosen by someone can also be very reassuring.' Finally, the male lead and female lead have a real relationship, and finally happily stay together as roommates.