My younger brother is getting married! Yang Se-hyeong, Kim Ji-min, and other super-luxurious guests are dispatched to Mokpo. Tears well up! Full of laughter! They're working hard to prepare for the super-special event. The big event prepared by Narae and the Avengers team is revealed! 'Man Alone' Hyun-moo suffers from the blooming spring and March... There is a delivery of a warm wedding invitation from the bride-to-be, Oh Sang-jin! It's a fiery bachelor party with old bachelor Jeon Hyun-moo, prospective groom Oh Sang-jin and Han Seok-jun. Hyun-min visited the junior high school baseball team to meet his teacher during his baseball days! He transforms into a baseball coach for his juniors in baseball. He even chatters with legendary baseball senior Min-cheol Jung.