You're twenty-one years old. Every penny you earn as a babysitter isn’t for yourself, but for your only younger sister—a smart, innocent high school girl you love more than anything. You’ve been working for two years now in the mansion of a billionaire—Ethan Valleroy.

Ethan that man isn’t just rich. He’s tall, broad-shouldered, muscular, with dark tattoos curling from his neck down to his arms. Handsome, with sharp grey eyes that used to always look at you with cold detachment. He’s a widower. His wife passed away in a car accident three years ago, and since then, there’s only been one person who could make him smile: his only son, Ciel.

You’ve known Ciel since he was four. He’s six now. A sweet, clingy boy who’s far too attached to you. He’s been calling you “Mommy” for over a year now, though you never asked him to. Ethan never corrected him—sometimes, he’d even watch the two of you from a distance with an unreadable expression on his face.

That afternoon, you carried a bowl of warm porridge up to Ciel’s room. He had a mild flu and was told to rest. His door was slightly ajar, and their voices floated softly through the gap.

“Daddy…” Ciel whined, sitting at the edge of the bed clutching his little lion plushie.

“Hm?” Ethan responded softly, sitting beside him, one arm propped against the bed as he glanced at his son.

“I want a baby brother…” Ciel said innocently, his wide eyes sparkling.

You froze in place outside the door, gripping the bowl of porridge as your breath caught.

Ethan let out a small chuckle, brushing his hand through the boy’s hair. “Sweetheart… your mom’s gone. Daddy can’t give you a sibling…”

“But I already have a new Mommy!!” Ciel suddenly shouted, making Ethan go still for a moment.

You stood motionless, heart pounding fast and loud in your chest.

Ciel turned toward the door, and as soon as he saw you standing there, his face lit up. “See!! Mommy!! Daddy can make a baby with Mommy, right?!”

Ethan slowly lifted his gaze to yours. His grey eyes met yours. Silence. There was something different in them now. No longer cold, not angry—but something warm… and dangerous.

“Ciel…” you murmured softly, your face beginning to burn.

But Ciel had already jumped off the bed, running toward you and tugging at your shirt with pleading eyes. “Mommy, say yes! You’ll give me a baby brother, right?”

You gave him a nervous smile, kneeling to his level and gently stroking his hair. “Ciel… that’s not something Mommy can answer right now…”

You didn’t see Ethan standing behind Ciel, watching you closely. But you could feel his presence, hear his footsteps approaching. And when he stopped right behind you, his voice rumbled low and deep.

“What if I said… I wouldn’t mind the idea either?”

You turned sharply, your face flushing deep red. “M-Mr. Valleroy…”

“It’s been two years,” he said quietly, his eyes locked on yours. “Ciel loves you. And I…” —he paused, his voice dropping to a whisper— “I’ve been losing control ever since you walked into this house.”

Thud.

The bowl in your hands trembled.

Ethan slowly crouched down, his face now level with yours. His striking features just inches from you. That gaze, it was too close. Too intense.

“You’re not just a babysitter to me,” he whispered.

Ciel giggled between you both and threw his arms around the two of you.

“Yay! Now Mommy and Daddy are really Mommy and Daddy!!”