[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"origin-bound-to-the-sign-in-system-i-took-off":3,"chapter-bound-to-the-sign-in-system-i-took-off-bound-to-the-sign-in-system-i-took-off-chapter-249":6},{"origin":4,"title":5},"chinese","Bound to the Sign-In System, I Took Off",{"chapter":7,"nextChapterSlug":19,"prevChapterSlug":20,"totalChapters":21,"novelImage":22},{"id":8,"novel_id":9,"title":10,"slug":11,"index":12,"content":13,"wordcount":14,"created_at":15,"updated_at":15,"volume":16,"translator":17,"content_hash":18},2336303,4567,"Chapter 249","bound-to-the-sign-in-system-i-took-off-chapter-249",249,"\u003Cp>In the meantime, he adjusted the flow rate of his helium-nitrogen-oxygen tank.\u003C\u002Fp>\n\u003Cp>He realized that, given his current physical condition, the tank’s flow rate didn’t need to be set so high—this way, the tank, originally rated for eight hours, could last him much longer.\u003C\u002Fp>\n\u003Cp>As Qin Yun moved, real-time data tracking of the tank appeared on the screen, reflecting all changes instantly.\u003C\u002Fp>\n\u003Cp>“At this flow rate, Brother Qin could easily last ten hours—but is he really fine?”\u003C\u002Fp>\n\u003Cp>Some professionals, seeing the data changes, couldn’t help but express skepticism.\u003C\u002Fp>\n\u003Cp>“Yes, fifteen degrees may not seem low, but underwater, it still feels cold—even in a drysuit. If your body feels cold, your oxygen demand increases.”\u003C\u002Fp>\n\u003Cp>“More importantly, the deeper you go, the greater the pressure—maintaining this flow rate is practically impossible. I think Brother Qin is just trying to save a little oxygen early on.”\u003C\u002Fp>\n\u003Cp>To ordinary viewers, these professional analyses sounded impressive but confusing; yet most believed Qin Yun simply didn’t need as much oxygen as a normal person—he’d already proven this perfectly at Yaomei Peak and beneath the wilderness ice cave.\u003C\u002Fp>\n\u003Cp>The oxygen-starved environments that would cause extreme discomfort to ordinary people felt perfectly normal to Qin Yun.\u003C\u002Fp>\n\u003Cp>Qin Yun swam forward for a moment, his laughter transmitted through the microphone into the livestream: “Visibility is better than expected—about six to seven meters. I hope it holds.”\u003C\u002Fp>\n\u003Cp>As he spoke, he glided steadily past two stone pillars and continued descending.\u003C\u002Fp>\n\u003Cp>The depth gauge on the livestream screen kept climbing: 20 meters, 30 meters, 40 meters. Just as the depth stabilized at 40 meters, the underwater scene abruptly changed—a current surged again, stirring up endless silt from the riverbed as if pulled by an invisible hand. Visibility plummeted from six to seven meters to less than half a meter; the helmet lamp’s beam shattered into fragments, leaving only a gray, chaotic haze, as if he’d fallen into a dark prison.\u003C\u002Fp>\n\u003Cp>Even his own hands appeared only as blurred shadows.\u003C\u002Fp>\n\u003Cp>The same went for the other ten underwater drones—their feeds instantly lost clarity, replaced by nothing but murk.\u003C\u002Fp>\n\u003Cp>“Holy shit, how the hell are we supposed to keep going in this?”\u003C\u002Fp>\n\u003Cp>“No wonder they call it blind diving—so this is what they meant.”\u003C\u002Fp>\n\u003Cp>“Brother Qin’s breathing is so damn long, like a tortoise.”\u003C\u002Fp>\n\u003Cp>“Fucking tortoise.”\u003C\u002Fp>\n\u003Cp>Qin Yun didn’t move rashly, but he hadn’t lost his sense of direction—his mental spatial reconstruction had already mapped every place he’d passed and every sight he’d seen. Put bluntly, even if the murk lasted indefinitely, he could still proceed—only the reconstruction would take longer.\u003C\u002Fp>\n\u003Cp>“Visibility is low now, but I’ve already memorized the direction ahead, so I’m not worried about visibility—I’ll keep moving. Once we get past this zone, the view will definitely improve.”\u003C\u002Fp>\n\u003Cp>Qin Yun’s voice was calm as a dog sleeping in the sun. He pulled the guide rope forward, quietly feeling his way up to the ceiling rock wall, following its surface as he advanced. After ten meters, he secured a carabiner to anchor the guide rope.\u003C\u002Fp>\n\u003Cp>As expected, visibility improved significantly—he immediately sped up. Soon, after swimming a few more meters, he finally emerged from the murky silt zone.\u003C\u002Fp>\n\u003Cp>Once the camera feed cleared, the livestream viewers finally exhaled in relief.\u003C\u002Fp>\n\u003Cp>“Can you see the passage ahead? It’s only about 0.7 meters wide—I need to be careful not to bump my gear.”\u003C\u002Fp>\n\u003Cp>Ahead loomed a vast rock wall, towering like a cliff, leaving only a narrow passage between its vertical and horizontal formations. The closer he got, the tighter the ground and ceiling squeezed together, reducing the space above and below to almost nothing.\u003C\u002Fp>\n\u003Cp>Qin Yun moved his body effortlessly, gliding through with relaxed grace, expending almost no effort—his turns and forward motion were seamless. These subtle details, invisible to ordinary viewers, left the professionals in awe.\u003C\u002Fp>\n\u003Cp>Only someone with an unparalleled familiarity with water could achieve this.\u003C\u002Fp>\n\u003Cp>As he neared the passage, Qin Yun’s gaze shifted downward.\u003C\u002Fp>\n\u003Cp>He hovered in place, pointing at the raised mound below.\u003C\u002Fp>\n\u003Cp>“Look—this layer beneath is thick silt. If I step on it, I’d sink instantly, and it could easily bury me completely.”\u003C\u002Fp>\n\u003Cp>As he spoke, several translucent little fish suddenly darted out from the silt, vanishing in a blink.\u003C\u002Fp>\n\u003Cp>Instantly, the silt erupted again—Qin Yun cursed, “Fuck!”—and his vision was once again swallowed by murk.\u003C\u002Fp>\n\u003Cp>“Hahaha, why’d you have to show off like that? Just swim through quietly!”\u003C\u002Fp>\n\u003Cp>“Laughing my ass off—did you notice? Brother Qin’s voice sounds a bit off.”\u003C\u002Fp>\n\u003Cp>“We noticed already.”\u003C\u002Fp>\n\u003Cp>“It’s the helium. Brother Qin’s tank is a helium-nitrogen-oxygen mix—inhaling helium naturally alters your voice, but it’s not that funny yet.”\u003C\u002Fp>\n\u003Cp>“I kinda want to hear what his voice sounds like when it’s fully pitch-shifted.”\u003C\u002Fp>\n\u003Cp>Qin Yun didn’t know any of this—if he did, he’d be speechless.\u003C\u002Fp>\n\u003Cp>He swiftly passed through the narrow passage, then immediately secured another carabiner on the other side to anchor the guide rope.\u003C\u002Fp>\n\u003Cp>His head-mounted camera swept the area—he noticed the terrain sloped sharply downward from his feet, becoming impossibly deep, like a triangular incline.\u003C\u002Fp>\n\u003Cp>“You all saw those fish just now, right? Having lived for eons in total darkness underground, their eyes have completely regressed. They rely solely on lateral lines to sense water flow and surroundings. They’re called blind fish—unique to karst cave systems, the native species of this underwater labyrinth.”\u003C\u002Fp>\n\u003Cp>Qin Yun continued forward, explaining: “These fish evolved from ancient surface fish trapped in underground rivers. Over hundreds of millions of years, they gradually lost their eyes and pigmentation, becoming a rare and unique species.”\u003C\u002Fp>\n\u003Cp>Hearing Qin Yun’s explanation, netizens erupted in admiration.\u003C\u002Fp>\n\u003Cp>“Damn, Brother Qin knows everything—even these stupid little fish.”\u003C\u002Fp>\n\u003Cp>“Since Qin Yun started streaming, I’ve never seen him not recognize a single plant or animal—as if every living thing is stored in his head.”\u003C\u002Fp>\n\u003Cp>“Knowledge changes destiny. Qin Yun isn’t just a physical powerhouse—I think his knowledge plays an even bigger role.”\u003C\u002Fp>\n\u003Cp>After swimming forward for several minutes, Qin Yun checked his depth gauge—it read seventy meters. The underground river’s terrain grew increasingly complex: the once-wide channel narrowed, and stalactites hung from the ceiling like natural obstacles.\u003C\u002Fp>\n\u003Cp>In the livestream, his figure moved through the space, appearing tiny and fragile.\u003C\u002Fp>\n\u003Cp>Merely watching the dark, oppressive environment induced a sense of suffocation—yet Qin Yun’s breathing remained perfectly steady. The minimal tank flow and harsh conditions seemed to affect him not at all.\u003C\u002Fp>\n\u003Cp>There was no trace of fear in him, either.\u003C\u002Fp>\n\u003Cp>“Holy shit, Brother Qin isn’t human—I’m just watching and my skin is crawling.”\u003C\u002Fp>\n\u003Cp>“Skill gives courage—that’s Brother Qin.”\u003C\u002Fp>\n\u003Cp>“Hasn’t Brother Qin challenged enough limits already? This is just another natural wonder he’s conquering.”\u003C\u002Fp>\n\u003Cp>Qin Yun moved smoothly, gripping a stalactite, turning a corner—and finally found the required passage. But the sight before him made his expression flicker.\u003C\u002Fp>\n\u003Cp>Government records stated the waterway here was narrow but still about 0.6 meters wide. Yet what lay before him was nothing like the records: several massive stone pillars intersected, completely blocking the passage, leaving only an entrance less than 50 centimeters in diameter.\u003C\u002Fp>\n\u003Cp>Fifty centimeters in height, width, and depth—not just width.\u003C\u002Fp>\n\u003Cp>Without his gear, passing through would be effortless—he could simply curl up and squeeze through even the narrowest point.\u003C\u002Fp>\n\u003Cp>But now, with his bulky tank and equipment, the total width was at least sixty to seventy centimeters—passing through was nearly impossible.\u003C\u002Fp>\n\u003Cp>Unless… he removed his gear entirely.\u003C\u002Fp>",1226,"2026-06-20T21:37:30.093Z",1,"Qwen3-Next 80B","d302e3ffc7c3a9a420cc48cee3ba27bc00e91a2c7a2e0b2ec746e22071df08d0","bound-to-the-sign-in-system-i-took-off-chapter-250","bound-to-the-sign-in-system-i-took-off-chapter-248",329,"https:\u002F\u002Fnovelzhen.com\u002Fimages\u002Fcovers\u002Fbound-to-the-sign-in-system-i-took-off-cover.jpg"]