It was winter vacation, and the mall buzzed with crowds.

Jianglai still wore her morning outfit. Yingyu Chi, under Jianglai’s strict orders, had swapped her inner layer for a turtleneck sweater. They shared only one scarf—nowhere near enough for two.

Jianglai’s afternoon task was simple: she had to adapt to her new female identity, no matter how reluctant she felt. A bra could work in a pinch, but for her health, she needed properly fitted underwear.

She’d never had a thing for cross-dressing. Facing this now felt awkward. Yet skipping underwear would cause worse trouble.

That morning’s escape from the office had taught her the pain of her large chest—even a short hallway run made it ache.

For her future health and to prevent sagging, Jianglai had to find the right bra. There was so much she still needed to learn about being a woman.

Only by living it did she realize how much she’d missed. Becoming a woman required attention to countless details.

Entering the mall’s main gate, Jianglai spotted a huge exhibition hall. It seemed to host a celebrity event. A stunning poster adorned the stage—a gorgeous star.

Curious, Jianglai glanced at it while following her sister-in-law. Why did that face look so familiar?

Her gaze locked onto the poster. After a long moment, she remembered: the woman from the bar.

But this version was brighter. Dressed in dazzling finery, her long legs flawless under the skirt, she looked like heaven’s favorite—exquisitely radiant.

Jianglai had thought she’d never see Xu Ruobing again after that night. Yet in such a short time, Xu Ruobing had filled her thoughts countless times.

Lost in thought, Jianglai didn’t notice Yingyu Chi leading her to the lingerie section. These stores sold women’s products—places Jianglai would never enter before. Now, she was a customer.

Mannequins in lace underwear stood under bright lights. Jianglai’s cheeks flushed as she stared at the displays.

"Normally, a rough size works for underwear," Yingyu Chi said. "But for you, brother-in-law, we can’t be careless. Ill-fitting bras ruin your clothes later."

Seeing Jianglai’s flushed, embarrassed face, Yingyu Chi smiled. She grabbed Jianglai’s hand. "First time is normal. Don’t worry—I’m here. I’ll measure you, then handle the rest."

Inside the store, Yingyu Chi moved with practiced ease. Ignoring the approaching clerk, she directly asked for a soft measuring tape. No small talk—straight to business.

She’d been dying to know her brother-in-law’s new size. Before Jianglai’s transformation, she’d wondered about such things. Now, her curiosity shifted to other details.

Yingyu Chi’s tastes all stemmed from Jianglai. Anything her brother-in-law had, she adored.

Only Jianglai interested her—regardless of gender. Both forms had charms, but female Jianglai offered unseen expressions she loved more.

Before, Yingyu Chi could only fantasize. She’d never acted on it, keeping Jianglai as a mental snack. Now, the chance to tease her was here. How could she not be excited?

The moment she got the tape, Yingyu Chi shoved Jianglai into a fitting room. Click—the lock snapped shut, as if fearing escape.

She was like a groom rushing to his wedding night. Every second counted.

Jianglai watched Yingyu Chi approach with the tape. Deep down, she trusted her sister-in-law completely. Even if the world turned cruel, Yingyu Chi never would.

This trust came from years together—a reflex.

But trust didn’t stop the shyness. Yingyu Chi was a no-nonsense powerhouse at work, unstoppable. Yet with Jianglai, she was still the playful, thoughtful sister who loved her cooking.

Jianglai tried to step back. The cramped room held two poorly. Before she moved far, Yingyu Chi pulled her close.

"Brother-in-law, you’d rather strip for a stranger than me? I’m right here…"

Jianglai fell silent. Logically, Yingyu Chi was the better choice. But familiarity made it harder.

Even being stripped by Xu Ruobing hadn’t felt this awkward—maybe the alcohol helped that night.

After a mental debate, Jianglai turned obediently. Her sister-in-law never gave up once set on something.

She hung her heavy coat on a hook. Fingers trembling, she unbuttoned her shirt slowly.

Halfway through, she paused. Why undress fully just for a measurement?

Before she could ask, a pair of porcelain-white hands reached from behind. They began unbuttoning her shirt for her.