Romance manga w/ parent/guardian MCs

Ever since Tsubaki Tarou, who lives alone in the city, was coincidentally reunited with his childhood friend Hiraiwa who is now divorced (with a child), his life started to subtly change. Tsubaki naturally integrates himself into Hiraiwa and Fumio`s family, slowly adding colour to their lives. A heart-warming story depicting the warm interaction between people and their tender lives.
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○ child is primary school age

When Kate came back to her hometown to care for her sick father, she was distressed to run into her CEO ex-husband, Max, at the hospital. It’s been eight years since a miserably unhappy Kate ran away from the love of her life. Things have gotten complicated now—Max has found out about the existence of his secret daughter!
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○ kid is 7 y/o
○ : alcoholism, emotionally abusive relationship (pre-story)

Xiaomo is raped by a prince, who later puts out a bounty for her. After giving birth to two boys, Xiaomo passes out. Her mother and sister, who looks much like her, steal one of the infants go to the prince, the sister getting engaged to him in Xiaomo's place. Years later, the two boys meet and instantly connect. Now they have to find a way to bring their parents together so they can get the family they've never had.
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○ kids are 5 y/o
○ : rape

Our main character Sena is a girl whose parents pass away, leaving her with two siblings to support. Thus, being a high-school student, she works as a maid for money. So what will happen when she finds out that the person she's working for is actually Souma, a boy who seems to have a hidden side?
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○ kids (twins) are primary school age

Despite having given birth, Mimi won't let motherhood tie her down. She's as fierce and independent as ever. She's decided to find out what happened to Yuan Qing, her husband and the father of her child. According to rumors, he died in the war, but Mimi has faith in him, and believes he's too crafty to get killed.
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○ kid is 5 y/o
○ : child abuse (it's comedic, but I figured I'd add a warning)
○ sequel to "Wedding"

A fortune teller says that I was born with bad luck... Who is she trying to fool? My son is a biracial baby with super powers, who can use dreams to predict the future! But then a tyrannical CEO comes out from god-knows-where and says he's my little treasure's dad?! What is this, a television drama?
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○ kid is pre-primary

Manman plan to spend her first night with her fiancé. She is accidentally booked in the same hotel room as a man expecting a prostitute. Intoxicated, by the time she realizes it's not her fiancé, the man forces her. She becomes pregnant, and when her fiancé refuses to believe she didn't cheat, she breaks up with him. Years later, she's hired by a Mr. Lee, and for some reason, he seems very familiar.
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○ kids are 6 y/o
○ : rape

Because of a conspiracy, she got pregnant and gave birth to a cute little darling. A few years later, she met her “sweetheart” again. Only, the cold, unfeeling man from the legends didn’t seem as bad as she had imagined?
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○ kid is in daycare
○ : tbd, but based on the description, rape

When a former senpai of his comes back into his life after 11 years, Hoshino is surprised. He becomes confused and slightly terrified after the senpai finds out that Hoshino has kept a pen that he gave him after all these years, then kisses him.
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○ kid is in fifth grade
○ tagged as yaoi, but it's not (that or I'm really unobservant, lol)
○ "Yoake Ni Furu," is a spin-off about the son, now a high schooler; discontinued