
The concept itself for the main character to have like a not mature personality was actually quite refreshing. seeing that his mind is actually like a kid rather than an adult because he was too spoiled and they don't even teach him anything so he doesn't understand anything and thinks that everything should go his way, and now he tries his best to relearn is likable about him. I also like that he didn't forget the torture and death he experienced not like other manga/manhwa/manhua although I do want a no ecchi genre, it's weird seeing that the maid wanted to be a mother figure and the next panel she wears lingerie for him... It's weird.

Love the original Lucia for doing that, but i still don't understand, is she also messed up? Cuz the thing she cared about is what was in front of her, in the original one, the one in front of her is all the Male leads so make sense they got the reverse harem or just with one of the ml, meanwhile in the now version since she is always with the reincarnator Lucia means she always sees her also means she is the only one she cared about which LED to this? Or am i Wrong don't quite get it tbh

Apologies if I misunderstood your comment but to put it frankly, yes she is messed up in her own way because what normal person tries to isolate the one they love?
As for the “ thing she cared about is what was in front of her” part, considering the fact the original one only appears when “Lucia” is asleep and the reincarnated one was unaware of the original one’s schemes, I believe it’s safe to assume they don’t share memories from when the other one is awake. but because the reincarnated one tells her everything she knows what went on while she was unconscious but not the other way around. Therefore the only one who was technically in front of the original Lucia all this time was no other than the reincarnator because her only interactions with other characters we see were through the form of letters

The way I understood it, it’s the twisted way the player character of any dating sim operates. The player character of a dating sim often throws themself at the love target in any way that appeals to them, often in an unhealthy self-sacrificial way. For the OG!Lucia, that was her fate; whoever she would be set to pursue, whatever Love Target was placed in front of her, her personality would mold around them.
However, the one placed in front of her this time is Isekai!Lucia. A somewhat-copy of herself. So her personality twists into some sort of self-love alongside a pursuing love. She uses Isekai!Lucia to break free from the Otome plot while also isolating her so that they end up “together”. Because OG!Lucia and Isekai!Lucia cannot physically exist in the same space in real life (not to mention Isekai!Lucia mever lets her out during ‘game time’ because she’s so self-absorbed), OG!Lucia’s personality is not beholden to appealing to anybody. That’s why she says at that end that she’s finally “me” and refuses to give up her character-agency to anyone else ever again.
Isekai!Lucia’s mental is too weakened and broken now from the shattered confidence to take control anymore. So OG!Lucia is finally free and happy.

Yo the dad's suspicious

Think he's supporting the baron with ancient magic. If all the activity and spending started just the same time as FL transmigrated, very likely the dad (apparent daughter's fool) noticed someone took over his daughter's body and is just trying to get her back through evil magic. Not sure how the conniving Grace bi*ch is involved in his nonsense though.
Anyone knows other manwha like this?
Trace of wonder
https://www.mangago.zone/read-manga/a_trace_of_the_wonder/
BL that takes place in dungeon/gates/game like leveling system:
Necromancer survival
Death Delayed for a Short Time Because of the Will
My Rat Is An S-Class Awakener
The Hunter Wants to Live Quietly
I’m The Villain’s Constellation With Empty Pockets
I also have a list but it has a lot of esper guide ones included, https://www.mangago.zone/home/mangalist/1960575/
To kind stanger, thank you for recommending this masterpiece. I read it with a grain of salt thinking it'd be another jerk ml, but the story is totally different from what i expected
Ah I'm glad you liked ittt