I love that! Also it got stuck in my head and won’t leave 😂 I had my husband play too and we both were reminded of “your reality” from dokidoki literature club
Just gave it a listen and you're right! They've both got that classic I-VI-IV-V chord pattern, on piano with a high female voice, but then add in that the first grammatical phrase of each ends in the word "day" and it's a little uncanny. Maybe this is a sign that I should play that game :)