Without hesitation, I instructed my sister: "Strip off her wet clothes immediately. Wearing them will only worsen the fever. Here are dry clothes and towels - clean her body thoroughly before changing her into these."

My elder sister accepted the garments with gratitude. "Thank you, doctor."

I fidgeted anxiously. "Don't call me doctor. Just Zhaao Qian is fine."

A surprised laugh escaped my sister's lips. "Oh? We're practically family then - we share the Zhao surname as well. I'm Zhao Fen and my sister is Zhao Fang."

Her wistful smile nearly left me breathless. The dim light could not obscure her features. She resembled a living doll, an anime character brought to life with delicate childish proportions yet mature curves that defied belief.

I found myself staring until she turned away from the doorframe. Rushing out with an umbrella in hand, I barely registered my clumsy collision with the frame as rain lashed through the village.

The pharmacy yielded no pills. Old Man Wu despised Western medicine entirely, preferring his own herbal concoctions. But I recalled treating a patient similarly - mixing garlic and ginger paste to induce sweating after administering a Compound Bupleurum Injection.

Back at the hut, Fen greeted me anxiously as I produced my medical kit. "Has her temperature risen further?"

I retrieved a thermometer. The reading horrified me - 40°C! Another hour of this fever could cause permanent damage.

Holding the oil lamp in one hand and needle in another, I nearly dropped everything when I spotted the patient's face turned toward me. It was Fen!

"Is she really your sister?" My voice cracked as disbelief gripped me.

Fen explained they weren't twins - her 14-year-old sister had matured unnaturally fast. The revelation sent my mind racing with absurd theories about fox spirits.

Later, when I administered the injection to the girl's bare lower back, I nearly fainted again at the sight of her exposed anatomy. Fen quickly covered her sister up before I could object, leaving only enough skin for treatment.

The entire episode left me sweating profusely as I prepared garlic paste. When she insisted on calling me "big brother" instead of doctor, my cheeks burned - especially after hearing about the other women he'd seen in his 60 years versus these two... sisters.

I almost regretted agreeing to this rural post when Fen began undressing behind me. The rustle of fabric sounded like heartbeats in my ears, each second stretching agonizingly as I feigned ignorance.