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🖤 Hidden Heart – Series Summary

Ryuji Kuroda is a powerful and emotionless businessman who believes love is nothing but a weakness. His life takes an unexpected turn when he finds an abandoned baby girl, Aiko, in the backseat of his car. Seeing her as a burden, he plans to get rid of her… yet somehow, he can’t.

Instead, he raises her in secret — hiding his growing attachment behind a cold and distant facade.

To maintain his reputation, Ryuji enters a contract marriage with Yuna Tachibana, a gentle and strong woman who grew up without a family of her own. What begins as a simple arrangement soon changes as Aiko brings warmth into their lives, slowly turning a fake family into something real.

Meanwhile, Aiko grows up alongside Haruto, the son of Ryuji’s childhood friend. Though Haruto teases and bullies her endlessly, he quietly protects her, forming a bond neither of them fully understands.

As time passes, hidden feelings begin to surface —
a father who pretends not to love,
a woman who learns what family means,
and a child who changes everything.

In a world of cold hearts, one small girl becomes the reason they learn to love.