My Sister Turns Into a Yandere at Night

「寿月~」
一声响亮而烦人的警报响起.
一只纤细的小手突然从毯子里伸出来.它伸手去拿手机,熟练地滑动屏幕,关掉了闹钟.
周围恢复了寂静.
陆凌月是一个普通的男大学生.那是暑假,但他睡不起.
他必须起床为他的妹妹做早餐.
不过,严格来说,他实际上与这位姐姐没有血缘关系.她是被别人托付给他父母照顾的孩子.
不过,由于他的父母在海外,他们把她的照顾托付给了正在上大学的陆凌月.
他姐姐叫陆小雪.她有一头长到腰间的银色长发,长长的腿,完美的身材,一双像海洋一样广阔的蓝眼睛.
陆小雪和他就读于同一所大学.
但与陆凌月这个害羞内向的家伙不同,他的姐姐陆小雪是学校里有名的美女.她也是一位著名的网络尤里小说作家.
作为一个自律的作家,陆小雪每天早上都会早早起床去跑步.之后,她会回来吃早餐,然后开始写作.
另一方面,陆凌月,是非得给这个脾气暴躁的姐姐做早餐的人.
然而,他们的关系并不完全温暖.
陆小雪不喜欢和男人交往,包括她的哥哥陆凌月.
在学校里,她是一个安静听话的女孩,和其他所有女孩都相处得很好.但在家里,她几乎不和陆凌月互动.
陆凌月虽然有些不满,但他并不是真的生气.毕竟,他记得父母的一再要求,还记得她无与伦比的美貌.
但最近,她的行为越来越难以忍受!
陆凌月在不小心走进了她的换洗衣物后,被锁在了房间外面.他还在淋浴时无意中瞥见了她,也挨了一拳.
他下床时揉了揉眼睛,只好为这个脾气暴躁的姐姐做早餐.
他下楼,走进厨房,打开冰箱,拿出一些鸡蛋,然后扔进锅里.
整个过程很顺利,而且很有经验.
最后,一个热气腾腾的煎蛋被放在了桌子上.
仍然半睡半醒的陆凌月眯起眼睛,用尽全力挤压番茄酱.
"咔嚓."
他身后的门开了.
"你回来了."
陆凌月,仍然昏昏沉沉的,喃喃自语.
但后来他意识到有些不对劲.
Today, it seemed that he was shorter than usual, having to tiptoe to reach the frying pan.
And his strength seemed to have diminished too, as he struggled to squeeze the ketchup out of the bottle.
His voice sounded sweeter and more delicate, and his arms appeared white and slender...
Lu Lingyue staggered back in shock from all the changes.
"What the?!"
Just as he was about to fall, Lu Lingyue felt himself falling into a fragrant embrace.
"Little sister, who are you?"
The voice belonged to Lu Xiaoxue, who had just returned from her run.
She was wearing a light pink sports outfit, her silver hair tied into a neat ponytail, with a faint post-exercise flush on her cheeks, and beads of sweat on her forehead.
And most importantly...
Lu Lingyue realized that his arm was now resting in a rather inappropriate spot on Lu Xiaoxue!
He quickly pulled his arm back, but in the process, his unsteady balance caused him to be pulled back into her soft embrace.
This time, it wasn't just his arm—his entire head fell into Lu Xiaoxue's chest, and even as she pulled him out, his head still felt dizzy.
"Little sister, how did you get in?"
Lu Xiaoxue's lips parted slightly, her tone gentle, in a way Lu Lingyue had never heard before.
But...
Little sister?!
Lu Lingyue jerked away from Lu Xiaoxue's arms, suddenly realizing something. He rushed toward the bathroom on the first floor.
When he saw his reflection in the mirror, he froze.
Because in the mirror, there was a little silver-haired girl with red eyes!
In the reflection, Lu Lingyue had long silver hair that cascaded down to her ankles, her crimson eyes blinking, and her oversized nightgown revealing half of her snowy-white shoulder.
Most shockingly, she was now only as tall as Lu Xiaoxue's chest!
Lu Xiaoxue, who was about 168 cm tall... which meant that Lu Lingyue was now...
A silver-haired little girl?!
Lu Lingyue pinched her own round face and ran her fingers through her silky long silver hair, then tried to check if everything else had also changed.
Of course, his... well, his male parts were gone.
At this moment, Lu Lingyue finally confirmed one thing.
He had gone from being a male college student to a little girl!
At this point, Lu Xiaoxue had followed him and crouched down to look at him. "Little sister, can you tell me how you got here?"
A warm breath and a sweet fragrance surrounded Lu Lingyue. He had never been this close to Lu Xiaoxue before.
"If I say I'm your brother, would you believe me?"
Lu Lingyue bit her lip, steeling herself, and sweetly admitted the truth.
"Little sister, lying is not a good habit!"
Lu Xiaoxue gently poked Lu Lingyue's small nose with her slender finger.
"My name is Lu Lingyue. I'm eighteen years old. My father is... My mother is... Last night I had stir-fried cauliflower with mushrooms, and my exam scores from last semester were: advanced math 88 points..."
To convince Lu Xiaoxue, Lu Lingyue listed off her entire life like reading a menu.
Lu Xiaoxue was stunned, eyes wide in disbelief.
"You... really are Lu Lingyue?"
"Absolutely!"
Lu Lingyue straightened up, trying to prove her identity, and replied loudly.
Lu Xiaoxue searched the house, inside and out, but couldn't find any sign of Lu Lingyue.
"So, you really are Lu Lingyue?!"
Lu Xiaoxue stared at the little silver-haired girl, her disbelief palpable.
Before Lu Lingyue could even nod, Lu Xiaoxue suddenly changed her demeanor. She grabbed her and hurried upstairs.
"What... are you going to do...?"
Lu Lingyue, with her short legs, yelled as she was dragged along.
Lu Xiaoxue didn't say a word and pulled her straight into her room.
"These, these, these, put them on!"
It was Lu Lingyue's first time in Lu Xiaoxue's room. She was handed a white lace bubble-sleeve dress, a lace bow headband, and white thigh-high stockings, her face turning bright red.
"If you're really a girl now, you can't keep wearing men's clothes. Hurry, change into these."
Without waiting for a response, Lu Xiaoxue pushed Lu Lingyue into the adjacent changing room.
Inside the changing room, Lu Lingyue stood holding the fragrant dress, swallowing nervously, then walked over to the mirror.
Since transforming into a girl, she hadn't yet had a proper look at her new body.
She gazed at her cute and petite reflection in the mirror.
Trembling, she took off the oversized nightgown.