I've been following the Blade master so I can shine some light on the plot, this is all basic stuff so I won't spoil anything critical.
The protagonist was a former hero who loved to battle, but because of his rise as a great hero the people turned him into a king and he always regretted how his life turned so boring in a castle.
In her now second life, the starting point is from the moment she's born with the memories of the previous life... By the time she's teenager, I think it's fine to assume the protagonist has no problem being a woman, in fact she's pretty proud of how cute she look and the agility of this body.
Being reborn as a girl doesn't make her preference for woman change but we never see her act like a pervert or anything, she's pretty bashful in fact.
Her only concern is to NOT repeat the same path, she wants to become a knight and battle powerful enemies that's all...while also hidding the secret of the previous life, anything else is very spoilery.