I wondered what people found about this series to rate it so high. After a few episodes, I've become a bit of a fan of this cast. The time travel thing is a bit of an overused plot, but the story remains cute and unique.

Only one person in this family can hear and speak, the brother and parents are deaf. He loves playing the guitar and making music but feels guilty towards his father who wants him to become a doctor. “Ottokee?” Please the father or follow his dream?
He has a flashback to the past and finds himself in 1995, he meets his young parents and wants to avoid an accident to change the future of his family for the better, but he must be very careful, otherwise there could be big problems, such as the possibility of not being born .

I really liked the guy Ha Eun Gyeol (actor Ryeoun), a great guy between Park Bo Gum and Cha Eun Woo.

Interesting to see sign language. I also appreciated all characters and the beautiful songs.
For those who don't know, the singer of Spine9 is a singer of iKon.

PS: I was wondering what the watermelon was in the title and I discovered that it refers to Frida Kahlo's last painting, called "Viva la Vida" which had watermelons as its subject.