
Iroha is a talented and hardworking young lady who lives alone and survives by having an oshi-katsu (she is a big fan of an AI singer). One day after wishing on a falling star(?), she finds a baby and ends up taking it in, only every night it grows bigger until it's her age.
Kaguya is excitable and voracious but that's what Iroha needed.
There's a virtual world where Iroha's oshi Yachiyo exists and performs concerts. Kaguya pulls Iroha into a contest where the winner gets to sing with Yachiyo.
I don't even know what to say about the plot because it's all still churning in my head except...
I CRIED SO MUCH
I found myself wishing it was a TV show a few times but ultimately think it did a really good job of building everything up and landing the punches. When the twist hit and just started crying and crying.
The music wasn't really my type but it held so much meaning for the characters. I do wish we got to hear Iroha sing more, her voice was more my type.

Spoilers:
Just thinking about how far Iroha went in the end for Kaguya brings tears to my eyes. I wanted to see a picture of them eating pancakes at the end but the below screenshot is still very lovely. X'D
I went in unsure about whether this was GL or not even even halfway in I still wasn't sure, but the way it was portrayed in the end was beautiful. Yes "I love you" is said but the love is truly shown through actions and emotions and it was beautiful. Iroha refused to let go multiple times and in the end spent 10 years studying to build a body for Kaguya, one where she could taste the pancakes they promised to have together.

I can't wait to rewatch it someday! I saw there's a light novel, it'd be cool if it was able to expand on the story since it'll have more room.