On the same day she returned home after her overseas trip, Rose had installed surveillance cameras at her residence.

In anticipation of living together with Nishino, she began making preparations. This involved placing surveillance cameras throughout the house, from the guest room she intended to provide to the living room, toilet, and bathroom. She meticulously planned their placement to ensure there were no blind spots.

This is all to capture and store every moment of her beloved's private life.

The roommate in question has returned home since their farewell at the airport. His luggage is scheduled to be brought in as early as the following day. Therefore, tonight is the decisive night for the blonde Lolita. With her precise movements, there is no wasted effort in this work, which makes full use of the skills she has cultivated so far.

"Fufufufu... Living together with Nishino-kun..."

However, inside her mind, there's a field of flowers.

Even though she moves her hands efficiently, her wild imagination never stops. Since we're living under one roof, we might run into each other unexpectedly in the bath. If I forget to lock the bathroom door, he might see everything, won't he? Various rosy scenarios played out in her mind.

As a result, Rose was happier than ever before.

"Aa~a. I'm looking forward to it~ I don't think I'll be able to sleep tonight."

As she thinks about the happy cohabitation life starting from tomorrow, her heart flutters.

She decided in her heart to always enter the restroom without locking the door, and with her legs apart.

She has already ordered revealing lingerie. Regarding her undergarments, she's completely revamped them to adult specifications.

Setting up the camera is accompanied by marking, which she doesn't forget. In the guest room that will become his living space, she carefully saturates it with her love. Just like a dog or a cat, she diligently scrubs every corner with a cloth soaked in bodily fluids, thinking of her beloved. It's akin to waxing.

Due to that, she hadn't noticed, and the day had already passed into evening.

"......Is this about right, I wonder?"

If Nishino himself had heard it, he would most likely immediately raise his voice asking, "Which part is okay?". Without a doubt, he likely refused to move. However, sadly, only the landlord knows all the disgraceful details.

"Well then..."

Rose seemed content after finishing the job. She had a satisfied smile on her face.

Thinking everything was in perfect order, she headed to the living room with a rag in hand.

At that moment, she suddenly noticed.

"!"

The ring on her left ring finger had gotten dirty.

She noticed a slight stain that appeared to have occurred during her work, and in a panic, she hurried back to the living room to start wiping it with tissue paper. As she repeated words of repentance, she began to vigorously polish it.

"Aah! I'm so sorry, Nishino-kun! I'm really sorry!"

The ring she is wearing is a gift from Nishino during their trip. It is not only her first gift from him, but also something as precious as her life. She could never imagine dirtying or damaging it.

As she polished the ring, Rose pondered.

How can I wear the ring more safely and more carefully?

"Keeping it in the room is absolutely out of the question, isn't it?"

According to the mysterious belief she had created in her mind, the longer she wore the ring, the more it affirmed their love for each other. Rose longed to be in contact with the gift from him every minute and every second that passed.

Still, that will inevitably result in deterioration.

In some cases, it could end up getting damaged.

If it is a ring that costs a lot of money, it should last for several decades. Depending on the material, it can be repaired and worn for an even longer time. However, what she is wearing is a cheap fashion ring.

When worn regularly, it wouldn't be strange if it broke at any moment.

Moreover, in her case, she's already involved in a strenuous job. Depending on the situation, there is a possibility that she may have to sacrifice her arm with the ring. When that happens, Rose doesn't feel like she can prioritize her life over the ring.

It's undeniable that quick judgments become less sharp.

That is a situation she would also want to avoid.

"........."

While she polishes the ring, her mind wanders through various thoughts.

Then, a quick conclusion was drawn.

"......Right, that's a good option."

Rose made her way to the kitchen.

Then, she picked up a knife.

It's a big deba knife.

Following that, she went to the bathroom.

After removing her clothes, she entered the bathroom, completely naked. She pressed the shampoo pump repeatedly, sprinkling shampoo on the bathroom floor and walls, then meticulously spread it with both hands. Finally, she collected the bathroom accessories, including the body wash brush, and brought them to the dressing area.

"......Is this enough, I wonder?"

In front of the large mirror on the bathroom wall, she briefly inspects her body.

And then, she laid her body in the bathtub, which wasn't filled with water.

Just like the other residential floors, it was spacious enough to accommodate her entire body even when she stretched her legs, despite her petite stature. She confirmed there was enough space and adjusted her body's position to make the bottom of the bathtub align with her abdomen.

"........."

—And then, she thrust the knife she held into her own side.

She was struck by the pain of her skin tearing and flesh being severed. Simultaneously, the gushing blood sprayed forcefully, staining the bathroom walls and ceiling with red. Regardless of this, she continued to rip open her abdomen from top to bottom, as if pushing through with a grating sensation.

Her superhuman strength effortlessly sliced through the thin flesh.

"...!"

Agony naturally leaks out.

Yet, a smile appeared on Rose's face.

After confirming that the meat had torn, she placed the knife she had in her hand aside. Then, using her free hands, she continued to spread open the cut area and began manipulating around the area of her ribs. The squelching sound of sticky blood echoed in the quiet bathroom.

"......Here, I suppose?"

She located the eleventh rib. It had separated from the posterior abdominal wall along with the twelfth rib. She confirmed this through the sensation of her fingertips. Then, she used her fingernail to carve the tip, making it clear. At the same time, she pressed the ring she had removed from her left-hand ring finger onto the tip of the ribcage.

"......"

After several minutes of trial and error, the ring was securely fixed, embedding itself in the cartilage.

Immediately afterward, a white smoke began to rise from Rose's body with a hissing sound.

In an instant, her innate regenerative ability began to activate, gradually healing her physical body. Organs unintentionally harmed by the force reverted to their original state. Cut muscles reached out and reconnected, and new vessels extended along them. Once the skin covered the surface, the wound had completely vanished.

Nonetheless, the ring left behind in her body remained in place.

With her hands soaked in blood, she gently massaged her flank through the skin.

In response to this, her fingertips received the sensation of the ring from the area just beyond the ribcage. She could certainly confirm that the ring was there. Given her thin subcutaneous fat, even if she were wearing clothes, she would likely be able to confirm it by touching it with her fingers.

"Fufu... Ufufufu."

With her fingertips gently stroking her side, Rose displayed a satisfied smile.

The bloodstained bathroom and the slightly spilled internal organs did not appear to bother her in the slightest. With an expression that suggested she had done a satisfactory job, she wore a full, contented smile. It seemed that her fingertips, longing for that sensation, continued to stroke her side through the flesh.

"Now I can always be with the ring Nishino-kun gave me."

Rose was poised to develop a habit of caressing her side for the time being.