After saying goodbye to my newly acquired master, I returned home.

I played around with my F Class classmates who were waiting for me. Nan Ling sucked my blood in a lewd way, then treated me completely non-lewdly—or so I thought! Exhausted, I went back to my room and saw my sister still fast asleep.

"Yeer! Don't leave me! Please! I'll do anything you ask!" Ling Ling trembled uncontrollably, as if trapped in a nightmare.

"I'm here! Yeer won't leave her sister. Never!" I replied, grabbing Ling Ling's hand.

"Yeer! Do you know how much I regret? What a failure of a sister I am!" Ling Ling muttered in her sleep.

"What does Sister regret? Sister has always been so good to Yeer!" I asked.

But no reply came—only her soft snoring filled the air.

Seeing her like this, I smiled and headed to the kitchen.

After a few dozen minutes, I returned to her side and gently shook her. She opened her blurry eyes, stared at me, then pulled me into a tight hug, sobbing.

"I thought Yeer would never wake up again! I can't even imagine a world without Yeer! Waaah! It's all my fault! I was too weak! If I were stronger, Yeer wouldn't have..."

"It's not your fault, Sister! That opponent was beyond your current strength! In the future, you'll surely..." I comforted her.

"No! I must get stronger now! Yeer has awakened the Sacred Eye—I don't have time! By the time I grow strong enough, Yeer might... Wait! The academy head once wanted to take me as her disciple! Back then, I refused to spend more time with Yeer. But now, I'll become her disciple!" Ling Ling declared firmly.

"Is that so? Then go for it, Sister! But the academy head is away on tour and hasn't returned yet," I said. I didn't argue—Sister's stubbornness was unshakable.

"I'll wait. But Yeer, before she returns, shouldn't we take care of some business?" Ling Ling looked at me with burning desire, her gaze reviving memories of her terrifying dominance.

"Wait, Sister! I made you a delicious lunch! Let's eat first, okay?" I said, cold sweat trickling down my neck.

Ling Ling pounced on Lin Ye, her warm breath tickling his ear: "Yeer! Didn't you just say 'eat first,' 'bathe first,' or 'eat (❤) me first'?"

My brain froze. How did she leap to that? Her imagination was wildly off track!

Ling Ling pressed her lips against Lin Ye's, sucked gently for a moment, then whispered: "Yeer! Don't worry—I won't go that far!"

"No!" My long-forgotten scream echoed through the room again.

After we finished some unmentionable activities, we sat down for dinner.

"It's been so long since I ate Yeer's cooking! Still as delicious as ever!" Ling Ling sighed happily.

"Haha! Remember how you used to pester me for dinner every day?" I laughed.

"I did not!" Ling Ling pouted, looking oddly cute.

"Um, Sister... why did you change so much in middle school?" I asked—a question I'd held for ages.

"I'm not a qualified sister!" Ling Ling's face darkened.

"Hurting Yeer again and again! Bothering Yeer endlessly! I didn't even give you the basic comfort a family member deserves!"

"Yeer! When I saw you confess to Yang Qianlan, my heart shattered. But hearing you cry after her rejection made me realize—I'm a total jerk!"

"So I swore to protect you from all harm. Yet lately, I've felt so powerless. I need to change! I need strength to shield Yeer!" Ling Ling's voice trembled with sorrow.

Hearing this, I felt her pure, unblemished love. But she knew about my failed confession too? Guess Sister was a bit of a stalker back then.

I patted her head, using her old comforting words. Surprisingly, she didn't resist. "Isn't family about complaining yet staying willingly? Haven't I relied on you too?"

Sister's eyes widened. "You're so cunning, little brother! But having you is truly wonderful!"

"Same here! Having you as a sister—though it'd be better if you weren't a yandere!" I said gently.

"Haha! Just accept it! Others would kill for a yandere sister!" Sister laughed, embracing the label.

"Yeah, yeah," I replied helplessly.