The story start with a family, a father, mother and their 3 female children. The oldest were around 8 years old and the other 2 female children were around 2 and 3 years old.

The father wear glassess and looks harmless,innocent and timid while the mother were beautiful but have scary eye and have strong personality type woman. They love their child and shower them with love.

One day the father died in accident, the mother were devasted. A lawyer come and left the father will, and asked the mother to raise his illegitimate child, a 12 year old boy. The mother was furious and found out he have affair behind her back even before their first child born. She can't believed her timid husband can have affair. The lawyer then tell the mother that she won't get any inheritance money if she did not take the boy and adopt him. The boy was orphan and his real mother already die and the father has been raising him secretly, the boy also don't have any relative.

The mother don't want to do it but in the end forced to because she need the money to raise her 3 daughters. Time skip to 5 years, the oldest female child now become 13 years old, and she attend middle school. She looks like her father, she live with her new big brother for 5 years(the boy the mother adopt). She adore him and have crush on him, she knows he was her half brother because the mother tell the truth about the big brother situation. Her two female siblings were still innocent and did now know the truth about the brother.

The mother was busy with work and neglect her children, the brother were the one taking care of those 3 and the 3 female siblings really like and adore him. Our mc ,the oldest child attend school and find a boy getting his hair messed up by the girls. She help the boy and the girls run away, the boy tell our mc now he won't getting lunch because the girls who mess his hair usually play him for fun with the reward for lunch.

The boy tell mc he was poor, and mc pitying him, always make lunch for him every day. Their relationship got closer, mc also found out the boy live in poor environment , full of scary deliquents who somehow friendly towards the boy. The boy this how he live, and tell mc she was a good person.

At home, mc found out the big brother will move away, he apologized to mc and smiling to her and say she will be fine without her. MC then go to her mother room who smoke many ciggarates and working on some draft at her laptop. She have argument with her, telling the mother that her big brother were family, how could she do that. The mother tell mc, he already adult, and also she need to feed 3 children, she have not enough money to pay his highschool and college tuiton and saving it for MC. MC got mad at her and say she will quit school and work as long the big brother can stay. The mother snapped and tell her why she should raise a non blood related child ? she also pissed off when she see the big brother face because it was the proof of her husband betrayal.

In the end MC run away from the house and the boy who always get lunch for mc, help her to calm down. This seems turned out to be love triangle beetwen mc, the boy and her big brother. This was around 2015-2016 and was chinese manga, and yes it is listed on baka update.