Hey, on the 7 deadly sins king page you recently put that giants age 50 time faster than humans and 1300 years for a fairy would be 13 years for a human. In an episode where they show King and Diane's past, they show that a nice man gave them soup one day. They run into him a few days later and king states, "Hey, thanks for the soup the other day." and the man says back, "The other day? That was decades ago!" So I believe you've gotten it all incorrect. I have no idea how fast they think time goes but I'm sure you've got it flip flopped.
They also run into a man looking like the same man who had given them soup before. the man asked, "Hey, are you the giant girl and flying boy?" and Diane replies, "Yes! Thank you for the soup a few weeks ago." and the man says "Oh, i've never met you, the guy who gave you soup was my late grandpa. He used to tell me stories about you two but everyone thought he was crazy!" so ehm. I hope you have a good day though. <3