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https://store.steampowered.com/app/738270/Ciel_Fledge_A_Daughter_Raising_Simulator/

In the year 3716, humanity lives under constant risk of ruin from a colossal alien threat known as“GIGANT”. Fleeing its destruction, a mysterious young girl arrives on ARK-3, a magnificent city built in the sky…

Ciel Fledge is a game about raising an adopted daughter in a future world that still has hope. Featuring compelling management gameplay and a loveable cast of characters, it’s up to you to take care of Ciel until she reaches adulthood and becomes ready to fledge the nest.

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