[TOMT]A short animated 2D story about at girl a child and kirby with a music

When I was younger, maybe 5 years ago, I'm not sure, I saw a kind of clip in a Cash Express store. I don't know if it was an excerpt from a series or something else, but I strongly believe it was a wordless music video with 2D animation. It was about a woman in her early twenties who lived alone in her apartment. One day, she found a little girl on her doorstep. The girl had a strange physical peculiarity—I'm not sure anymore, but maybe a kind of snail shell on her back or wings. They both lived there but didn't get along very well until they started playing on the woman's console, maybe a Nintendo Switch, I don't remember. They played Kirby, they loved it, had fun, and spent a lot of time on it. The little girl was amazed by Kirby and the game. Towards the end, the girl, I don't remember how, got into the game and left the woman alone, which made her sad to lose the only company she had. At the end, we see the little girl having fun in the game with Kirby and other characters. I don't know much about the animation, and I don't remember the music, just that there probably weren't any lyrics, and the music conveyed emotion and sadness. I don't remember any important moments, or even all of them. Actually, I saw it a while ago. It's been a very long time and it haunts me. Thank you for helping me find out.