On the return journey, Lin Feng operated the Flying Wing Vehicle to push the protruding Tiger Bug mandibles completely into the spacious trunk and securely closed the side gates.
With the corresponding Tier 2 orange-quality materials in hand, Lin Feng's desire to upgrade was stronger than ever. At the very least, he wanted to upgrade the Lv16 Flying Wing Vehicle and his Crimson Flying Armor to the maximum Tier 1 level before deciding where to use the Tiger Bug mandibles.
For now, Lin Feng hoped that his fusion modifications to the vehicle hadn't shifted its classification from support equipment to weaponry. Otherwise, like the Lv19 grenade launcher, he would need to kill a Tier 2 insect to achieve a level upgrade.
If that were the case, Lin Feng would be forced to use the newly acquired orange-quality materials on the Crimson Flying Armor, which would be the least cost-effective option. Even if he could ignore Black Spinal Bug attacks, he'd have to risk enticing a Tier 2 Tiger Bug squad.
Lost in thought, the journey back was silent under the night sky. Three hours later, the Flying Wing Vehicle completed the transaction and returned to the service area at the front line.
Han Yuxin, after disembarking, returned to her original vehicle to lead the truck loaded with ten live insects away from the front line, preparing for her second transaction. Due to time constraints, following Lin Feng's instructions, she consumed a large amount of food in the car and proceeded with her superpower awakening.
Seeing her depart without any noticeable changes, Lin Feng suspected she had awakened a common physical ability, which carried low risks of accidents during awakening. He only reminded her briefly before letting her go.
With Han Yuxin gone, the service area fell into a quiet calm. Lin Feng, eyeing the stockpile of materials and three live Blue Wing Bugs, decided to enhance the vehicle and Crimson Flying Armor once more.
During the upgrade process, integrating the Blue Wing Bug wings harvested earlier, the Lv16 Flying Wing Vehicle successfully enhanced its ground effect flight mode. With fewer Black Spinal Bug mandibles used, the upgrade completed in just two hours:
"Ground Effect Flight Mode (Membranous wings unfold at both sides to increase uplift, reduce tire pressure, speed increases by 150 km/h, adaptable to complex water and terrain, fuel consumption increases by 100%, range halved)."
The only improvement was speed, but Lin Feng was satisfied. Speed was their biggest limitation, and every increase was crucial.
Now, the Lv17 Flying Wing Vehicle boasted a terrifying speed of 300 km/h, covering over 80 meters per second, rivaling high-speed trains. This speed was at the edge of what Chen Yanyan could handle; any faster, and the brain wouldn't process visual feedback quickly enough to react to complex road conditions.
Particularly, obstacles might not be avoidable in time. Any further increase, and Chen Yanyan would be unable to maintain such speeds safely.
Deciding not to waste the wing materials on further vehicle upgrades, Lin Feng turned to an experiment based on a personal hypothesis.
With the Lv17 Flying Wing Vehicle's remaining thirty upgrade points, Lin Feng initiated the next stage of the upgrade, opting for personal synchronization instead of fusion modification.
As a fully awakened Lv19 practitioner, Lin Feng didn't expect the red-quality vehicle upgrade to facilitate his Tier 2 awakening but hoped the energy influx would enhance his attributes beyond limits.
Without fusion modifications, the Flying Wing Vehicle's upgrade was swift, similar to the Lv19 grenade launcher, taking mere minutes. Lin Feng sensed the warm energy flowing into him, not as intense as before but still significantly strengthening his body.
Once the upgrade was complete, Lin Feng's personal attributes showed promising changes:
"Lin Feng, Lv19/19"
"Health 160, Constitution 160, Spirit 160"
Both health and constitution increased by 10 points, surpassing the human limit of 150.
With Jiang Yuner's help, Lin Feng had already broken his spirit limit to 155. Now, a 5-point increase was quite satisfactory.
Following the principle that personal strength is fundamental, Lin Feng upgraded the Lv18 vehicle to Lv19. After further enhancement, his attributes stabilized at:
"Lin Feng, Lv19/19"
"Health 170, Constitution 170, Spirit 165"
Now his stats were slightly lower than Qin Hu's, even without Tier 2 awakening, making him formidable among Tier 1 practitioners.
Seeing the 170-point stats, Lin Feng regretted not reducing the fusion modifications initially, which might have allowed him to reach the limits of Tier 1 awakening.
However, the fusion upgrades had significantly boosted the vehicle's defense and combat capabilities, greatly enhancing his team's overall strength, more valuable than a single Tier 1 awakener's potential contribution.
After breaking limits, Lin Feng prepared to deal with the remaining three live Blue Wing Bugs. Unexpectedly, he heard a familiar call from outside the tarp.
In the early hours, Lin Feng switched to the full-body armor mode of the Crimson Flying Armor and exited the repair shop. He found Zhang Liying, tearfully wiping her eyes, anxiously explaining:
"After eating the Black Spinal Bug's mandibles, Shen Jie fell into a coma and hasn't woken up. He's been feverish, similar to our awakening state before..."
Lin Feng's expression darkened as he followed her to the hotel. In a single room on the second floor, he saw Shen Jie lying in bed, his body red and feverish.
"Use water to cool him down and give him some sugar water. He won't make it through on his own; he needs extra nutrients," Lin Feng instructed.
He recalled the concentrated nutritional solutions the technicians fed Qin Hu at the field hospital and, combined with Ding Chenghai's insights on biological experiments, formed a hypothesis.
Under Lin Feng's guidance, Zhang Liying quickly fetched standard military rations from Chen Yanyan, including high-calorie chocolates and easily digestible candies.
In the emergency, they used these to stabilize Shen Jie. After being fed substantial fluid food, his condition improved, his burning body cooling down to normal as Zhang Liying wiped him down.
Under the influence of his abilities, Shen Jie's arms began transforming. From the sides, piercing the skin, emerged two long black blades. His upper body skin darkened, thickening like a black shell, resembling armor.
Fortunately, Shen Jie's breathing remained steady, and his heartbeat was stable, indicating no immediate danger.
In the latter half of the night, as dawn broke, Shen Jie gradually awoke.
Now, his upper body resembled an armored black knight, wielding over-a-meter-long blades. Lin Feng's eyes gleamed with realization...
This assimilation's dramatic attribute boost reminded him of Ding Chenghai's description.
It seemed stable genetic modification surgery was within his grasp.
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