A romance in the skies follows an older woman and a younger guy who are both working in the field of aviation. In order to fulfill his late mother's wishes, Li Qianyun learns to overcome his fear of heights through the encouragement of flight attendant He Xiaoxiao.

As graduation approaches, Zhou Zhiyuan is inspired by his sister's water polo coach to revive his school's struggling team. He recruits a mix of veteran players, a rejected basketball player, and a former water polo prodigy. Together, they face challenges both on and off the field, from competing for practice space to overcoming doubts within the team. Despite conflicts and setbacks, they persevere, ultimately chasing their shared dream of water polo success.