Aiden Thompson, a 23-year-old village boy, has only one purpose in life-protecting his younger sister, Mia. After a brutal accident leaves Mia mentally and physically unstable, Aiden sells their home and brings her to the city for treatment. But the surgery she needs is far beyond what he can earn as a café worker. Desperate and running out of time, Aiden is willing to do anything to save her.

A chance meeting with his city friend, Saara, brings an impossible idea:
Disguise himself as a woman and apply for a high-paying nanny job in the Blackwood mansion.

Forced by desperation, Aiden becomes “Ava”, nanny to Lily Blackwood -the short-tempered daughter of cold, intimidating CEO Ethan Blackwood, a man still haunted by his unfaithful late wife.

Irony is Aiden lost his heart to the CEO.
But Ethan only loved Ava.
What happens when he discovers the woman he trusted… was the man who loved him?

When "Aiden" became "Ava " ( Bl)