Starting from Robinson Crusoe

Due to the strong wind tonight and the impending rain, these two individuals did not focus on adding fuel, but instead transported stones to urgently reinforce the cooking pit and hammered stakes next to it, seemingly intending to build a rain shelter.

Although the mound blocked the wind, the gusts leaking from the river direction were still substantial, making the flames sway to one side as if suppressed, burning weakly and dimming the light of the bonfire considerably.

This flickering light was distracting for the two busy challengers, but it facilitated Chen Zhou’s observation of their specific appearances and physical builds.

The person wearing size 45 shoes was dressed in American-style camouflage army attire, with a height of about 192cm, a well-proportioned build, and a hand axe tied to their waist, exhibiting a distinct military demeanor while walking.

The sound of wind and the noise of moving stones disrupted Chen Zhou’s hearing; he could only vaguely determine if this person was American or British, obtaining no other information, and could not clearly hear the conversation between the two.

The other individual transporting stones was significantly shorter than "size 45," about 175cm tall, and slender in build.

The wild grass around the camp had been cut down or uprooted completely, allowing Chen Zhou to clearly see that this person was barefoot, walking without shoes.

Their outfit wasn’t the traditional loose Japanese attire nor a modern style, but Japanese ninja clothing.

Its distinctive features were the binding around the hands and feet, the wide belt tied at the waist, and the fabric mask on the head.

This ninja suit was entirely black, providing this Japanese person camouflage in the night; if Chen Zhou didn’t concentrate on watching them, relying on the stones or wood they were carrying to pinpoint their location, he would sometimes even lose sight of them.

While transporting stones, it was evident that "size 45" relied entirely on sheer strength, easily lifting stones weighing about 60 kilograms. Chen Zhou observed him working for over ten minutes; he continued joyously, unaffected in efficiency, leading Chen Zhou to judge his endurance as extraordinary.

The Japanese person’s physique was much smaller than "size 45," yet the strength displayed while working was no less.

Without heavy objects in hand, the Japanese person habitually walked with a lower posture, minimizing their silhouette, seemingly a habit formed from long-term training.

Chen Zhou knew the ninja designation was established in Japan’s Edo Era, primarily tasked with sabotage, assassination, and intelligence gathering, serving dual roles as assassins and spies, classified as Jonin, Chunin, and Genin. Jonin excelled in using wisdom to strategize combat, Chunin could both command in actual combat and possessed extraordinary Ninjutsu skills.

He felt that, if the Time Travel Administration Bureau did not select people carelessly, this Japanese individual was likely an experienced Chunin.

Thinking of troublesome Ninjutsu tools like cross spikes, ninja swords, blow darts, and hand armor hooks, Chen Zhou couldn’t help but feel a headache.

Killing this Japanese person head-on was easy, but achieving an instant kill was impossible. Giving this old devil reaction time would make it difficult to kill them afterward.

Several Ninjutsu tools assisted ninjas in swimming across rivers, and with the challengers’ camp so close to the water, if this person slipped into the river in the vast darkness, it would be nearly impossible to catch them again.

Moreover, judging by this Japanese person’s actions and demeanor, their caution seemed ingrained, further increasing the difficulty of a successful ambush.

"Indeed, quite troublesome."

Contemplating whether to take action tonight while it’s dark and windy, or to observe a while longer to understand the challengers’ patterns before forming a reliable plan, Chen Zhou slowly retreated from the mound towards Paul’s location.

Since he had no survival tools, and Paul’s survival tools were somewhat useless, the two of them could only muster one metal weapon—a military saber.

Despite having the advantage of surprise, they were at an absolute disadvantage weapon-wise. He needed to prepare with Paul in advance, at least arm Paul to handle "size 45," so he could fully focus on killing the Japanese person.