Romance manga w/ parent/guardian MCs

Six years after splitting up, his wife appears and tells him to take care of her child... who looks just like him!
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○ kid is 5 y/o
○ : non-consensual kiss, drugging (by and to 3rd parties), violence

A manhwa about a single father who doesn't know how to take care of his young daughter. In front of a supermarket, the father and daughter run into another man buying dolls, who could be a pervert?! But this new man is good at reading a young girl's mind. What will develop between the two handsome men? Will her father really become a bride?
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○ kid is in primary school

He has the absolute power. He kills without hesitation and is a cold, fickle man. Yet he becomes obsessed with her and dotes on her nonstop.
The first time they met, he asked, “Was it you, six years ago?”
The second time they met, he’s holding onto the DNA test. “You still dare to say he’s not my son?”
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○ kid is 5 y/o

On the big screen, there’s an intimate picture of a man and woman. That pair in the pictures was her own sister and fiancé. Ruo Yun Fei, who was innocent, was accused of everything. Three years later, she returned with her daughter. How much pain you suffered before… When you break from your cocoon and turn into a butterfly, you’ll become even more dazzling.
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○ kid is 3 y/o
○ : intercourse with one party drunk, violence