As Chika made her way down the pitch-black corridor, an unknown entity suddenly began to attack her, touching her body.

No matter how many times she looked back, even when she leaned her back against the wall, she couldn’t see the person touching her. Chika was at their mercy.

"Ah...!? Again...!"

As she started walking down the corridor, she simultaneously felt her buttocks being stroked. Each time, the attack came out of nowhere, causing Chika to flinch and instinctively cover her bottom with both hands as she turned around—but there was no one there. With no other choice, she turned back around, still covering her bottom, and began to move forward.

"Ahhh...! Ugh... I-I can’t take it anymore...!"

This time, Chika felt her breasts being scooped up from below. Her body jumped and shook again.

"Where on earth are you coming from...? Come on, at least show yourself...!"

Covering her chest with one hand, Chika raised her voice toward the unknown opponent. However, the unseen entity did not respond to her calls and simply continued attacking her body.

"Hya...!? Ah, kya...!? Ah, ah... hii, hyauu...!?"

It stroked her now-unprotected buttocks. When her body reflexively shook, it poked her chest. Furthermore, it touched the nape of her neck and stroked her thighs. As different parts of her body were touched one after another, Chika’s body trembled reflexively and she cried out.

"Ah, ahh!? Th-that spot... ah, kyaa...!?"

Finally, through the sensation of her inner thighs being stroked, she felt her pussy being rubbed from front to back. Along with that, she felt her breasts being pulled. Chika’s hips twitched violently, and she collapsed to the ground.

"Uh, uh... Hya!? Wait, stop... Ah, ahhh...!?"

As Chika tried to get up on all fours, she felt a slap on her protruding, massive buttocks.

"Hya...!? Ah, hya...! Ah, wait... ah, ha, hyau...!"

As Chika cried out at the sensation, she was poked in the side. Her thigh was lightly stroked, then her armpit was stroked. That feeling made Chika lie down on the floor again.

"Hii, uh... no, no more...!"

When she fell onto her back, her chest was touched. If she lay face down to protect herself, her bottom was stroked. As various parts of her body were touched, Chika lay on the floor, moaning and crying out in agony.

"Ah, ah... haa, haa... I’ve finally calmed down... now, while I have a moment..."

After a few minutes, the touching finally subsided. Chika slowly raised her body but then stopped moving immediately.

"Oh, wait... which way was it last time...?"

Perhaps because she had been rolling around in complete darkness, she seemed to have lost track of which direction she had been facing. Up until a moment ago, she could just barely see the faint light of the entrance hall when she looked behind her, so she had been able to determine which way she was going. But now, she couldn’t see anything no matter where she looked—she had absolutely no clues.

"Ah, ah... Ugh, if that’s how it is, I have no choice but to go one way or the other...!?"

At this point, all she could do was find a wall and move forward in the direction that allowed her to proceed. As she thought this, Chika crawled across the floor, trying to find a wall—at that moment, a creaking sound echoed from in front of her.

"Ah... it’s... a room..."

When she turned her gaze, there seemed to be a door there. The sound she just heard sounded like the door had opened. The room visible beyond the door was still dark, but compared to the pitch-black corridor where nothing could be seen, it was relatively bright, and the interior was faintly visible.

"Anyway, let’s go inside...!"

Not knowing which way to go, Chika stood up without hesitation and rushed into the room in front of her.

"Huh...!? The door...?"

The moment she jumped in, the door slammed shut with a loud bang. Chika froze, taken aback by the obviously strange movement, and slowly began to look around the room.

"Is this... someone’s room...? Is it a guest room or something...?"

Although it was difficult to see clearly due to the dim light, she could make out a bed, several pieces of furniture such as a desk and chairs, and various things scattered around. Chika came to that conclusion.

"Hmm... I wonder if there’s something going on..."

Slowly, so as not to miss anything even in the dim light, Chika looked around the room. Given that the door had opened on its own and closed automatically the moment she entered, she seemed to think some kind of event was about to occur, and she carefully searched the room.

"Oh, a lantern...! This could be used for light... Hmm, it’s broken. Unusable."

What is this...? A black sculpture of some kind? It’s dark so I can’t really tell... And this one... Is this trash...?

Rummaging through the scattered items on the desk and opening the chest of drawers, she found various things like lanterns and sculptures of unknown origin, but nothing particularly useful came to mind.

"Hmm, I don’t know... What am I supposed to do in this room...?"

Finding nothing, Chika sat down on the bed to take a break.

"Ahhh...!?"

That was when it happened.

Suddenly, something grabbed both of Chika’s wrists and forcibly pushed her onto the bed.

"W-what’s going on... Ah, wait, ah...!?"

Chika was bewildered by the sudden turn of events. Whatever grabbed her hands then dragged her body, moving her to the center of the bed.

"Ugh, wh-what are you... Ah, ah...!? Wait, ah, ah... ah, ahh...!?"

Even when she tried to resist, the grip on her wrists was strong. Because the attacker was also invisible, Chika didn’t know what to do and just let it happen.

"Ugh, what on earth is happening... Ah, ah...!? My, my buttons...!?"

As Chika was confused, with something grabbing both her wrists and pushing her down onto the bed, the buttons on her blazer and blouse began to come undone on their own.

"Ah, ahh...!? No, no...! No, nooo...!?"

Carefully, one by one, the buttons were removed as if by hand. Chika screamed and struggled, but she couldn’t shake off the grip on her wrists. There was no way to stop the buttons from coming undone. In no time at all, all the buttons were undone. With a sudden flick, her clothes were spread wide open, revealing her enormous breasts encased in a light blue bra.

"Ugh... What’s happening... Ah, ah...!?"

Without knowing if anyone was watching, Chika felt an indescribable sense of shame. Then she began to feel her breasts being squeezed through her bra.

"Ah, wait a minute... Ah, ah... Ah, ah...!? Ah, kya...!? Ah, ah... Hya, ahhh...!?"

This was completely different from the brief touches just moments ago—this was pure, intense kneading and torment of her breasts. However, the other person remained nowhere to be seen. As Chika endured the stimulation on her chest, confused by this fact, she simultaneously began to feel her ankles being grabbed, her thighs being stroked, and her buttocks being touched.

"Ah, ah...!? Wait, ah...!? Wh-what’s going on... what’s happening...!?♡"

A sudden sensation of being touched began to spread across her entire body. Without knowing what was happening, and with her arms and legs held down, Chika was powerless to do anything. She began to be touched all over by someone whose identity she could not see.