Romance manga w/ parent/guardian MCs (2)

Because her father was sent to London to work, Natsumi, a 4th grade student, also must leave Japan along with him. Her classmates throw a farewell party for her. Natsumi is prepared to go to London, but on the night before Natsumi's arranged departure, a baby appears in her arms.
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○ kid is a toddler

Following her mother’s passing, Midori is now not only responsible for raising her little brother, Ai, but she’s also tied down by housework and other school commitments, making it hard to establish any form of social life. Until she meets a man in the courtyard at school. Will he change her life or will she change him?
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○ kid is 7 y/o
○ : minor/adult pairing (FL is 17 and ML is 27)

They made love seven years ago, and he's been looking for her ever since. Little does she know, she's right in front of him and has his children.
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○ kids are 6 y/o
○ : violence

Ye Xuange is a former trainee in Linshan Entertainment. Before she can even be called a star, she's defamed by scandals, sexy photos, boyfriend's betrayal.
But one day, she wakes up to a five-year-old son and a bossy husband she never knew of. Her life will be changed completely.
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○ kid is 5 y/o
○ : violence, attempted murder, slut shaming
○ I don’t think this is explicit despite the tags

A college student helps out a single mother. When he confesses his love, things begin to change.
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○ kid is 12 y/o
○ : sexualization of a minor

Top hacker Ann Jiujiu sneaks into an auction, intending to steal a gem, but unexpectedly loses her baby! Instead, there is a child who looks exactly like her son. When Ann Jiujiu meets Ji Jinchen, she hides from him, but he still catches. Since we can't escape, we'll train him to be a good dog, and what's the fate of marriage, we already have two children!
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○ kids are 5 y/o
○ : rape, infidelity (not b/w main couple)

A woman is set up, drugged and forced to give birth. Years later...
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○ kids are 6 y/o
○ : kidnapping, drugging, rape (he didn't realize she was drugged and thought she was there of her own free will), forced to give birth, violence, victim blaming, PTSD, attempted murder (mentioned)

A hard working employee and a hard worker who is underemployed, gradually heal each other's past wounds and become fascinated with each other. What kind of promise will these two people make when they have experienced hard times in the past? Can they trust in each other?
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○ kid is pre-primary
○ : child neglect, child abuse, drunk driving (all in flashbacks or mentioned), child abandonment

Actor Fujimaru Ren’s one flaw is that he is not good with children. So in order to overcome this particular weakness, his manager proposes that he spend a week living with his co-star and child actor, Yuu. On their first day of living together, Yuu’s manager, Kei, shows up at his door, and it’s none other than the former child actor that inspired Ren to start acting.
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○ kid is 5 y/o

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○ child is a baby