Siegren.. such a joke and red flag. Possesive, manipulative and klingy. Imprinting gone wrong.
I wish she had Abel as her lover but then he went daddymode **pouts**
This is fantasy. She is a regressor or at least isekai, so your innocence is noted but thats it. 
She has a body of a child but thats it. She knew what she was doing with Sigren, so weirdly, she groomed her. This is the paradox of comics- adult to child regression. Its hard for some to see that is an adult in a childs body. If she WAS a child (as in body and mind, not a regressor/adult-child-isekai), that would be an entirely another story. IF she was a child child, then yes, Abel would been a wonderful father and Sigren just a puppy-first-love-thing, but it isnt.
