What an experience. Felt like watching a short movie.
I was unnerved by the atmosphere at first, thought it was a horror game, got jumpscared by the pink girl (even though I should've expected it, based on the itch.io page screenshots), then everything felt... melancholic? I'm not so sure myself.
The art is perfect for this kind of game/experience. The choice of using dreamcore and liminal space photos are great as well, fit with the vibe. The two characters only showing their silhouettes are great too.
The audio is really, really good. The music, the ambience, the subtle SFX, all of them are really great. Though maybe it's a little bit loud at the end, but maybe it's intentional.
Unfortunately I may be too stupid to understand the meaning behind all of this, if there's any. Unfortunately again, that also means I don't understand how all of this correlates to the theme of "chain reaction". But all of the texts sounds cool.