I, me, my, you In all seriousness I absolutely fell in love with this short master piece. In general most short stories fall into one of 2 categories: either they fail to captivate the audience in any meaningful way or Absolutely do captivate the audience and end abruptly or without completing the story leaving a burning desire for it to be longer. Rarely if ever is a ONA, OVA, or Independent Short Animation as emotionally captivating yet succinct as "#I want to see you before the world is destroyed" AKA "World, Before you end"(the bad translation that somehow stuck despite the official website and google translatenever giving me anything close to that.)

In short its a Independent Short Animation that was funded almost solely by the writers of the SF light novel under the same name, Mizuki Ria and Pierre Ito! The later of which is the director, a voice actor, and a animator on the project. You will not find animation in the same class as AA or AAA studios because Studio Kingyoiro is not at that level yet. However you will find a great story and on of my favorite Theme Songs of all time ever. I love this project and I hope you give it a chance!

Its hard to write a synopsis without giving away to much but I still think the one given on MAL and most streaming sites does not do it justice but the one on the official website says way to much. This might not be much better but this is mine:

In a Japan that's been Terrorized by Mtn Fuji's Violent outburst and subsequently covered by her ashy tears our protagonist Rui is among the first generation to attend school almost entirely online from home. Although some of the adults think it's easier like this Rui is burning up with teenage angst and the desire for human interaction beyond those of his parents and his online classes. Rui's met his only crush only ever online. Our heroine Michiru is a mysterious high school girl who has seemingly accepted her fate without action. Residing in Shizuoka, she will be caught in the next forecasted eruption. Although Rui has never seen her face he knows he has to at least meet her. Is Rui really the one that will be the one doing the saving or is Michiru's fate sealed in this timeline?

PS
Of course I still wanted it to be longer but I am ok knowing it most likely will never be unless someone translates the light novel for me. its on amazon as follows:
"#I want to see you before the world is destroyed" SF light novel by Mizuki Ria and Pierre Ito