Twinkling Watermelon (2023)

Ha Eun-gyeol is a talented CODA (Child of Deaf Adults) high school student who balances being a model student by day and a brilliant rock band guitarist by night. After a major argument with his father over his musical dreams, Eun-gyeol stumbles upon a mysterious music store that accidentally transports him back in time to the year 1995. There, he meets his future father, Ha Lee-chan, who is still in high school—and can speak and hear perfectly. To prevent a tragic accident and bring his future parents together, Eun-gyeol joins a school band fronted by his young father called "Watermelon Sugar."