Story: 5/10
This story is pretty average. It asks the existential question of "how much of yourself can you lose before you're no longer human" but with mystery "matter." The story is a bit confusing at first but it gets better by the end. There are a few twists here and there, but if you watch a lot of anime you can see it coming. I do like that they tried something new in the genre
Art: 7/10
You can tell there was some budget that went into the serie. It's simple, but there's a lot of panning shots and still parts for limited animation. It isn't MAPPA quality but there is a variety of camera angles and interesting shots every once in awhile
Sound: 5/10
The music is neat. The voice acting is what gets me. I watched the dubbed version and the girl MC voice annoyed me, so I couldn't fully invest in her character. The male MC voice doesn't match him at all. All the side characters and girl MC voices gives off teenager energy, whilst the male MC voice sounds like he's in his 20s.
Characters: 5/10
Pretty basic. I don't know any of their names except Gummy (the hamster like blob). I only remember its name because I like hamsters. There are scenes to give depth to the characters but it feels out of place and shoe-horned in. The characters aren't properly introduced and falls into archetypes. Makes it really hard to enjoy the serie when I dislike the MC so much.
Enjoyment: 5/10
I had little expectations going into this because it was made by Netflix. And I came out not a changed man. It added nothing to my life, but it was a good time-waster
Overal: 5/10
There are better series out there in the sci-fi genre that tackles existential questions and exploring the unknown. I wasted my time so you don't have to.