After leaving the room, Gu Ji couldn't help but be amazed by the massive structure of the ship's cabin before him.

An open-air corridor connected countless rooms around the ship, with a huge, open golden atrium at the center. He was currently on the third floor, and as he looked out from the edge of the corridor, he could see the corridors and numerous rooms on the first and second floors. Below was a public service area and entertainment mall.

At this moment, a male waiter dressed in a white shirt and black trousers passed by him.

Seeing Gu Ji wearing a mask, dressed "impenetrably," the waiter was first taken aback, then immediately bowed his head in respect.

This outfit was indeed quite conspicuous.

It was only early June, the weather was hot, and most tourists were basically wearing short sleeves and shorts. Only staff and a few business people were dressed in formal attire. Gu Ji, dressed fully in sportswear covering his entire body, was indeed rare.

"Hello, may I ask where the fire safety map of the cabin is?"

"Jian Na's" voice was pleasant, but a woman's voice coming out of his own mouth always felt strange to him.

"Oh, hello madam, the fire safety map is at the entrance to the fire escape. The fire escape for each floor's guest rooms is located at the stern of the ship, in the exact middle, near the restrooms."

Although the waiter was Japanese, his English was excellent.

Gu Ji nodded and, following the direction given, arrived at the stern on the third floor. He pushed open the door to the fire escape, which revealed a narrow stairwell with red fire hoses and extinguishers on the walls, along with a diagram of the ship's fire safety layout.

He first took a photo with his phone and then examined the information on it.

Although this ship set sail from Yokohama, Japan, its registry belonged to the United Kingdom. The cruise ship was 290 meters long, 48 meters wide, and 62 meters high, with a tonnage of 116,000 tons, capable of accommodating up to 2,670 passengers, with a total of 1,337 cabins.

In addition, the ship had five main restaurants, four swimming pools of varying sizes, a large theater, as well as various bars, nightclubs, a luxurious casino, duty-free shops, fitness centers, and internet cafés, essentially a "city on the sea."

"Nearly 2,700 people. If calculated using the hotel's industry service staff ratio, about another 1,000 staff and crew members would need to be added, bringing it to 3,700 people..."

Gu Ji's mind immediately flashed to the "commercial personnel safety configuration" standard in emergency disaster handling.

The more people there are, the harder it is to mobilize them.

Although the hazard level of this checkpoint was only one degree higher than the last, the complexity of handling actions had increased significantly more than just a little!

Fortunately, the ship had basic police, medical, and fire systems equipped.

Having pondered over the scene layout.

Next, Gu Ji's task was "simple": find the virus!

According to public health control grading.

The current area had just seen the introduction of the virus and should be at Level IV, which is a general response level. According to emergency response actions, the primary point is to strengthen monitoring of the virus source, search for the virus origin, actively screen suspicious cases, and promptly isolate, treat, transfer, report, and sample suspicious patients for inspection.

Due to lack of information, the specific origin of the virus was unknown.

Thus, he could only rely on luck, looking around each public area within the cruise ship, watching, listening, and sensing.

Starting with the corridor of cabins on the third floor, then the second, the first, down to the mall.

The whole morning, Gu Ji wandered around, looking for suspicious targets, but unfortunately, he found nothing. The interior of the cruise ship was simply too vast, with numerous and complex tourists.

Only half of the people in the crowd were Japanese, while the rest came from around the world, such as Europe and the United States, Latin America, Africa, Southeast Asia, and even the Middle East.

"Grumble..."

Gu Ji heard his stomach growling, and he felt a bit dizzy. Seeing that it was nearing noon, it was time to eat, so he took the elevator to the 7th-floor buffet restaurant.

The ticket "Jian Na" purchased included three buffet meals a day, but they could only be consumed within this buffet restaurant and could not be taken away. If he wanted to eat more freely, he would have to go to the paid restaurants.

Walking into the buffet restaurant, he didn't expect it to be crowded inside, full of people shoulder to shoulder, each selecting food from the spread-out buffet tables.

Gu Ji raised his eyebrow slightly.

In such an environment, viruses can easily spread explosively.

But on second thought, having so many people gathered in one place at once saved him the effort and time to observe all around.

He tightened the mask on his face and walked in, taking a tray.

Because the tourists were mostly Japanese, most of the food was Japanese cuisine, such as sashimi, sushi, and eel rice. The rest were Western dishes like steak, pasta, and pizza, with very little Chinese food.

Gu Ji picked a less crowded area and casually grabbed a few pieces of grilled meat and pizza.

Even so, wearing a mask and gloves, he still attracted the attention of many tourists in the restaurant, with each pair of eyes filled with curiosity.

Little did they know, Gu Ji was also carefully observing them.

"Onee-san, what a coincidence!"

A twin-tailed girl dressed in a JK-style outfit suddenly came over to greet him; it was his roommate: Ito Meiyu.

"Sister, I've got a spot over there. Let's eat together."

Before Gu Ji could answer, she pointed to a table not far away, which already had some snacks and drinks on it.

"Thank you."

Gu Ji nodded and followed Ito Meiyu to the table and sat down.

"Sister, do you have a cold?"

"Sort of."

Seeing her gaze fixed on his mask, Gu Ji took the opportunity to go along with it.

"Maybe from too much sea breeze. Yokohama has cooled down these past two days, and it's indeed a bit chilly at night, so don't worry. I have cold medicine in my bag; you'll be fine with just one pill!"

Ito Meiyu's kindness and enthusiasm caught Gu Ji off guard, and he quickly waved his hand, saying:

"No need, I've taken medicine."

"Alright, then if you need anything, just let me know!"

"Thank you."

"Sister, you're too polite. We're going to live together for 14 days, we should help each other!"

Ito Meiyu smiled slightly, revealing two shallow dimples, then put her hands together and closed her eyes: "Now, I'm going to start eating!"

With that, she started picking up the sushi in front of her.

Looking at this quirky Japanese girl, Gu Ji instinctively thought of his childhood friend Chen Zhiyu. In fact, the two were about the same age.

Through chatting, he learned that Ito Meiyu had also just graduated and boarded the ship for a romantic graduation trip at sea.

While the two were engrossed in conversation,

"Cough, cough!"

A sudden cough instantly caught Gu Ji's attention.

To the right.

Following the sound, he saw a middle-aged man at the next table wearing a Hawaiian shirt and a brown baseball cap, drinking beer and coughing violently, "Cough, cough..."

As his gaze moved, Gu Ji noticed a glaring red rash on the bare arm of the man in the brown cap!!

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