I FOUND IT, I FINALLY FOUND IT AFTER 7 YEARS!!! I REPEAT, 7 YEARS!!!

So, "Adri are you getting insane?" yes-, i mean i'm joking, so, giving the context, it was in 2015, the year that flash games still existed and i was like 5/6 years old, and i was playing games on a site called Friv (i was a pro gamer) and i played a game about a gray skinned character (i guess is a girl) with black hair and dress, and the game was all gray, i think it was the only information that i remembered about this game and i guess i never finished this game, and i tried to ask if someones know the name of the game commenting on a youtube video, but nobody knows what i was talking about lol, and, today, April 27, i finally found the name of the game, i was trying to play these types of games then i tried to search about Friv (name of the site) games trying to find this game's name, and i found a video showing i think all of the games, and this person showed a game called Nelly, and, guess what?, it was the game that i played in 2015, i'm kind of happy rn lol.