This has to be one of the best things I've seen in a while.
Disregard everything when watching this short anime. Don't think of how bad the art may be, how bad the voice acting is, and things of that nature that are not needed for its enjoyment. The anime has a purpose, and even in the low quality of its production, that purpose is achieved.
So, what is said purpose? To send a message of happiness. It's just that simple: Be happy and everyone around you will be happy, eventually forming a never-ending cycle of happiness.
I would love to give my opinion on how well that
message was delivered through the story, how well they used different contrast situations to emphasize the need to be gay, and how they also managed to include some minor teachings that your subconscious will at least detect, but believe me when I tell you is better for you to experience the whole thing on your own, without as much as minor spoilers.
I doubt this anime will pique anyone's interest, so make an effort and give it a try. It will be worth it.