After Manchester City fan Charlie Gibson uploaded a video of himself and his grandfather attending the club's dramatic final day Premier League-deciding victory over Aston Villa last season, millions around the world took the 84-year-old to their hearts.
Charlie's grandfather, Barry Carr, is a lifelong City fan who suffers from dementia.
Despite his condition, Barry still loves attending games at the Etihad with Charlie - and the beautiful video of their day out at the Villa game has now been viewed more than 7.5 million times.
Among those to be touched by Barry's story was City and England star Phil Foden. The 22-year-old has since struck up a friendship with the family, inviting them to make use of his private box at home games whenever they would like.
Barry and Charlie took Foden up on his invitation last month as they were present for City's 6-0 victory over Nottingham Forest.
The pair made the trip to the Etihad again on Sunday afternoon for the Manchester derby - and they couldn't have picked a better day for it with Foden bagging a hat-trick in a 6-3 victory.
Charlie has since uploaded a video of Barry's derby day experience and it makes for truly wholesome viewing.
The bond between Barry and Foden is just wonderful to see.
Barry's social media celebrity shows no signs of slowing down either, with more than 2.3m people having viewed the clip.
You can watch for yourself below.
84-year-old Man City fan Barry Carr's Manchester derby experience was so wholesome
@charliemoose_ Derby Day with Gramps 💙 @Phil Foden #mcfc #foden #dementiaawareness #feelgood #foryoupage #viral #EndlessJourney #footballvideo ♬ Paper Birds (3 min) - Jordan Halpern Schwartz
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Earlier this month in an interview with the Manchester Evening News, Charlie paid tribute to Foden and explained how much the player's warmth and generosity means to his grandfather.
"It's just extremely kind of him," said Charlie. "He's so down to earth he just wants gramps to genuinely be there and enjoying the games, it's really lovely to see.
"It's been amazing (since the first video), they (City) have really gone above and beyond. Foden has been so supportive and telling us we're welcome to come whenever he wants and he always makes sure to say hello before the games.
Video: Barry relives his epic derby day as Man City win 6-3
@charliemoose_ Replying to @Skys&coffee He loves you all! 💙 Popped in tonight to say hello and show him the day all over again 🥰 #dementia #feelgood #alzheimersawareness #mcfc #fypシ #viral #EndlessJourney ♬ Metamorphosis - Danilo Stankovic
"Gramps has been having such a great time, it's what football is all about. People can only see parts of the experience on the TikToks and what I am trying to do. It's all about trying to have that connection with him that you can't always have with someone living with dementia."
"Why you rarely see me on camera is because I'm creating memories that I can look back on and see Gramps having a great time despite the dementia. It can be completely different day by day with him, he might be in the bed and quiet in the morning but he's so excited by the evening when we're going to the game.
"The amount of people that come up to us at games now and shake his hand and say hello is really lovely to see. It shows how strong a community the football club is and how close a family the City one is."