is this a novel?
I don't really know. But I have colorful images in my mind that doesn't seem flat, so probably.
this seems close enough
https://www.novelupdates.com/series/im-spying-on-the-heroine-in-an-otome-game-world/
Yes, this is it! Thanks, a lot! (≧∀≦)
Uh, how do I click to read chapters on Novel Updates? It's been a while, since I used it and it wasn't like that before.
I think you'll need to have an account. once you've logged in, the links for the chapters will be available
Okay, thanks! (๑•ㅂ•)و✧
The MC is a girl who has a male cousin that tells her that they're living in the world of an otome game. The cousin happens to be one of the capture targets of this game, who reincarnated as the teacher capture target. The cousin asked the MC to help him from the heroine, since he doesn't want to be captured.
So, the MC started spying on the heroine, and she saw that the heroine keeps getting involved with the other capture targets too. Probably, it's because she's recreating/acting out the scenes from the otome game. So, I think she's also a reincarnator.
There's also this object, like a gemstone or something that the cousin is carrying, which I think is connected to the otome game. I think it's color is related to the sun.
Yeah, I forgot to mention, but the capture targets of this story is related to the days of the week (in Japanese). Nichiyoubi (Sun Day - Sunday), Getsuyoubi (Moon Day - Monday), Kayoubi (Fire Day - Tuesday), Suiyoubi (Water Day - Wednesday), Mokuyoubi (Wood Day - Thursday), Kinyoubi (Gold Day - Friday), Doyoubi (Earth Day - Saturday).
The teacher cousin is the Sunday capture target.