This is one of those dramas where you're sad it's over, because you have to say goodbye to everyone you've grown so attached to! Yoon Shi Yoon is top notch and effortlessly charismatic, totally stealing the show as a free-spirited pop star from 1993. I cannot stress enough how funny and endearing he is. The unique and intriguing premise is bolstered by plenty of humor and heart, solid and multifaceted supporting characters, and catchy music. The story is spiced up by the time travel element while still hitting the feel-good beats from slice of life type dramas. I'll miss the rooftop friends!