Most underrated Otome Games?

[Trouvaille]

In your opinion, what is/are the most underrated Otome Game(s)?
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I think in my case, Anniversary No Kuni no Alice. I don't see nobody talking about this game, but it has a good place on my heart <3 Even though the system that is used sometimes throw me off ~ I don't know if anyone feels the same. Also, Immortal Heart, from Genius. I don't have words to describe it, I think is one of my favorite games in the whole world. ​

 

[Bleu Moebius]

Although not applicable to the "most underrated otome game", "Enzai" It's an old game, so it's not well known and doesn't seem to be evaluated.
The character design is Yura, and she has worked on many titles such as the "Hana Awase" series and the "Lucky dog" series. She also worked on the character design for this "Enzai".