Looking for a yaoi manhwa

I'm looking for an age-gap manhwa where the bottom (MC) is an adult but got held back a year in high school. MC's father is in debt and sent MC to an island so MC could be safe while his father figures things out. He lives with his grandmother who is deaf/HOH and most of the residents on the island are old. His grandmother runs a convenience store and during season 1 there's a typhoon (? not sure, but it was a natural disaster) that hits the island and destroys the store and injures his grandmother. He meets 3 gangsters and develops a relationship with 1 of them. The ML has enough money to fix MC's grandmother's store, so he does. At the end of season 1 MC has to leave the island.