I finally got to play this game, and I really enjoyed it! It reminded me a lot of "Sofia?" and "Confess My Love", and the soundtrack gave me some serious "Stranger Things" vibes. I really liked the artwork and the story, as well as the explanation for the time-loop, and for your co-worker's attitude towards you killing her over and over again. I'm definitely looking forward to Kathinka's next game, because I honestly enjoy her games.
"Confess My Love" is a free game on Steam. I'm not going to spoil anything major about it, so I'm just going to say that it is a really good game, that it is not what it initially seems to be, and that you should play it when you're able. It is another game where you have to get all of the other endings to get the true ending, and it doesn't take long to beat the game, although you may need a guide to get all of the endings.