Manhole: Bong Pil's Adventures in Wonderland

Bongbi (played by Kim Jaejoong), the only son of the third generation of the Haein Bongshi family, who has retaken college three times, played for three years, and prepared for the civil service exam for three years, is a well-known god-level unemployed vagrant in the community. After hearing that his female friend Jiang Xiuzhen (played by Kim Yoo Jin), who has been unrequitedly in love for 28 years, is getting married, he is frustrated and falls into a strange manhole and begins a ridiculous time journey. If he cannot prevent his beloved's wedding in a week, he will attend the wedding as a guest instead of the groom. Faced with this situation, can he successfully stop the wedding and win her heart?