That Man Oh Soo is a South Korean romantic drama series that follows the story of a young man named Oh Soo, who possesses a magical pollen that can make people fall in love with each other.
Oh Soo uses this pollen to help others find love, but he himself is unable to fall in love due to a curse that prevents him from feeling emotions.
Everything changes when he meets a police officer named Seo Yoo Ri, who is the only person immune to his pollen. As they spend more time together, Oh Soo starts to develop real feelings for Yoo Ri, but he must find a way to break the curse in order to truly love her.
The series explores themes of love, fate, and the power of emotions, as Oh Soo and Yoo Ri navigate their complicated relationship and try to overcome the obstacles in their path.