Shiori and Chika returned to the real world. The two had lunch and took a break.

"Thank you for the meal."

"Thank you for the meal!"

After finishing the lunch Shiori had prepared, they started chatting before logging back into the world of Fantasia World.

"So... it’s alright if we head to the southern area this afternoon, right?"

"Yes...! Let’s get violated by lots of men of the sea and monsters, and then play on a private beach at the end!"

The topic of conversation naturally turned to what they were going to do. Unlike the northern area, which was mainly desolate fields, Chika was already excited about heading to the beautiful southern area with its ocean beaches.

"Oh... that’s right. I need to make a swimsuit before I go... Hmm, what kind of design should I go with? My sister was wearing a bikini and a pareo, so maybe I should wear a bikini and a pareo in different colors? But maybe I should go with a different design... What should I do?"

"Well... I wonder what kind of suit would look good on you, Chika."

As they headed toward the sea area, Chika began thinking about the swimsuit she would wear and started researching designs on her smartphone. Shiori also started looking things up on her phone to join in.

"How about this one? Or maybe this one too?"

"Since we’ll be wandering around the beach and stuff, it might be a good idea to bring a shirt or hoodie in addition to the swimsuit."

Shiori and Chika looked at swimsuit pictures one after another, brainstorming what kind of design they would choose.

"Hehe... I’m so happy that I can wear a swimsuit and go to the beach with my big sister. In real life, if I went there, I’d probably get into trouble with dangerous people, so I couldn’t go."

"That’s true. In the game, you can be attacked safely multiple times, which is great. But I absolutely didn’t want to be attacked in real life, so even though I was interested, I couldn’t go."

Discussing swimsuits seemed to make Chika very happy—she was smiling. Shiori returned her smile, and the two continued searching on their smartphones.

"Okay, let’s go with this. So I’ll send this data to the VR equipment... Yep, now all I have to do is buy the base wear and create it...!"

"Yes, we did it."

As if they had made up their minds, they put down their smartphones and exchanged smiles.

"Even so... it’s so convenient to just make whatever design you like without worrying about anything."

"What’s wrong? You’re acting so suddenly..."

Meanwhile, Chika’s smile faded, and a somewhat reflective expression appeared on her face. When Shiori questioned her, Chika slowly placed her hand on her ample breasts.

"Ah, yeah. Well... Big sister, in my case, my breasts are particularly large. So when I look at clothes, I first need to check if there’s a size that fits them. It’s not that I dislike this size, but because of it, there have been times when I liked a piece of clothing but couldn’t find it in the right size and had to give up. That’s why being able to have clothes made to fit me from the start is so convenient and easy."

"Ah... you’re right. It’s quite difficult to find..."

Chika looked a little dejected. While she had no complaints about their erotic size, it seemed to be a significant obstacle when it came to dressing stylishly, and she was somewhat concerned about that. Shiori, though not as large as Chika, also had impressively big breasts, and being tall for a woman, she seemed to have had similar experiences often. She nodded in agreement.

"Well... that being said, I’d also like to make them even bigger... ♡ Right now they’re 97 cm at the top. When they grow a little bigger, they’ll reach 100 cm—meter-long boobs! ♡ Over a meter, over a meter...! ♡ Now that I’ve come this far, I really want this brand...! ♡ Hehe, hehe ♡"

"Chika... you know, if you’re that big, you might attract the attention of really dangerous people."

However, Chika, who harbored such strong perversions that she desired to be violated together with her sister, seemed to be hoping for even bigger breasts. Seeing her sister with a dreamy smile, talking passionately about breasts exceeding a meter in size, Shiori was understandably a little taken aback and replied with a look of exasperation.

"Yeah, well... I try to be careful about that. No matter how much of a pervert I am who wants to be violated, I don’t want to take that risk in reality."

"Well... I can’t say anything about your sexual preferences, but you really need to be careful in real life."

After receiving Shiori’s advice, Chika quickly calmed down and nodded, appearing calm. Watching this, Shiori replied with an unreadable expression—then glanced at her watch.

"Well... let’s leave this topic aside for now. Shall we log in again soon...? ♡"

"Oh, yeah. That’s right...! Shall we go get violated again? ♡"

Since they had already taken a break for about an hour, the two once again returned to the world of Fantasia World.

Once back in the game, they first used a teleportation card to travel from the "Wilderness Town" to the "Seaside Town." Then Chika bought some base wear. To transition from her school uniform to a swimsuit, she entered a dedicated space and began creating the design.

A few minutes later, Chika returned to Shiori after finishing her work.

"...Come on. You..."

"...Hehe ♡ Since we’re here, why not...? ♡"

When Shiori saw Chika return in a swimsuit, she looked a little surprised. That’s because Chika looked like this now:

The top was a pink flared bikini with ruffles covering the bust area. The bottom was a pink, panty-style swimsuit. There were knots on the sides of the waist—not just decorative; they were actually tied to hold the garment in place, and if untied, it would fall off. Finally, she wore a plain white hooded parka as an outer layer. Incidentally, her weapon changed from a student notebook-shaped item to a pink scrunchie-shaped item, which she wore on her wrist.

Up to this point, it would have been nothing more than Chika putting on the swimsuit she had decided on beforehand, but Shiori’s gaze was fixed on Chika’s chest. She already had a massive I-cup bust, but the size visible through her flared bikini looked like it had increased by at least one cup—no, maybe two cups.

"Hehe... My bust is 105 cm and I’m an M cup! Come to think of it, I can customize my avatar, so I decided to make them bigger!"

"Oh, I see..."

With her hands on her hips, Chika confidently declared her size and cup size. Shiori was surprised that her younger sister had suddenly grown 8 centimeters larger, but she started talking to her.

"Well... if you’re okay with it, that’s fine... but by the way, doesn’t it feel strange to suddenly make them that big?"

"Well... maybe it’s because it’s a game? It feels natural. But for now, I’m only planning to do it this one time. This is an episode where I can experience breasts that are over a meter long."

Chika swayed slightly at Shiori’s words. The effects of exceeding the meter—the shaking and weight transmitted from her chest, the change in her center of gravity—felt completely natural, as if her breasts had always been this size. She nodded.

However, that’s only natural. Shiori and Chika used their real-life forms, so they didn’t realize it, but Fantasia World’s system allowed not only women but also men to create female avatars and be sexually assaulted. Because a synchronization system was always at work to ensure no disconnect with the created avatar, even when her breasts suddenly became larger, Chika felt no discomfort.

"Well, Chika’s ready, so let’s go."

"Yeah, let’s go, big sister."

Anyway, with Chika’s preparations complete, the two began walking through the "Seaside Town."