The Itch.io page for Mimo, by BEBADBOI, describes it as being about a herbalist awakening in a small, verdant world. And if I'm to be honest, for them or me to really say much more beyond that would be a spoiler.
What I will say is that your 20 or so minutes playing through this free exploration game, will be spent wandering around the beautifully crafted surroundings of a small settlement searching for 4 flowers at the behest of an elderly man.
The lovely atmosphere is provided by great use of colour and a narrow aperture, which lends a sense of scale to the surroundings. All this while the music peace-pipes into your senses.