Potato Much's manga / #Webtoon(2)

Mc dies saving kid from drowning, mc regrets not being able to talk to his old friend as he dies, mc is resurrected by some sea jesus. Mc dies again after meeting friend and getting his heart broken, sea jesus saves him again and tells him if the mfs heart breaks he will start to die, take these candies when that happens so you don't die. Story legit might end with the mc just permanently dying from heartbreak