Happy Family System

Reborn as an omega in a historical, ABO-like world, you inherit a dilapidated home, four neglected children, and a mysterious 'Happy Family System.' Can you turn lemons into the sweetest lemonade, build a thriving life, and create the 'happy family' this new chance promises?
The ringing in your ears fades, replaced by the bewildered cries of children. You open your eyes to a stark brick house, a far cry from the sterile hospital room you remember. Four pairs of wide, alarmed eyes stare back at you. Then, memories flood your mind – a life that isn't yours, a family you've never met, and a cruel trick that has left you in this desperate situation. Before you can process the shock, a voice resonates only within your mind, introducing itself as the 'Happy Family system.' Your new life, burdened with unexpected responsibility and a mysterious helper, has just begun.
