"Motorcycle parking room."

"Drone control console."

"Autonomous driving."

"Doubled body strength."

"800% reduction in energy consumption."

...

Every green "+" sign filled Lucas with delight.

After carefully examining each available addition, Lucas became a bit indecisive.

Lucas remained composed and didn't easily click on the "+" sign.

Without a doubt, it was impossible for all the "+" signs on this blueprint to be implemented at once. The system wouldn't be so generous.

So, the question now was quite tricky.

How many functions could be added this time?

Or perhaps each function had a different chance of being added.

For example, adding the "drone control console" might prevent the addition of other functions.

On the other hand, adding the "motorcycle parking room" might still allow for the addition of "autonomous driving."

Lucas had to carefully consider all these aspects, as adding them incorrectly could have a significant impact.

Lucas was a bit overwhelmed and wanted everything.

However, one good thing was that repairing the bus's engine was the default option and had nothing to do with the "+" signs.

Regardless of Lucas's choices, as long as he gave the insect nucleus to the system, it would directly repair the bus's power system.

He looked up in the direction of the yard, where the sounds of gunfire hadn't ceased.

The battle between the military, zombies, and insects was far from over.

Lucas suddenly realized that even if he repaired the bus's engine, he might not be able to approach the yard.

In that case, looking back at these "+" signs, the "autonomous driving" function seemed like a necessary choice for Lucas at the moment.

Having the bus drive itself over here seemed like the best solution.

With that in mind, Lucas didn't hesitate and directly clicked on the green "+" sign for "autonomous driving."

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There were no special effects.

Just as Lucas was feeling a bit confused, a black watch suddenly appeared on his left wrist.

From its appearance, the watch looked similar to an ordinary electronic watch, except the dial seemed to be a touchscreen, giving it a cool look.

Lucas tapped it with his hand, and a screen resembling a navigation map appeared on the dial.

Two lines of small text appeared next to it.

"Destination location established. Should the vehicle automatically drive to the designated location?"

"The current range of the bus's automatic arrival at the designated location is one kilometer."

"This function can be voice-controlled once the host assigns a codename to the bus."

"Not bad."

Lucas directly set the name "Barbarian King," which he had previously given to the bus.

Just imagining that in the future, he could softly call out "Barbarian King" and have the bus charge towards him, such a scene felt quite exciting.

After setting it up, Lucas didn't let the bus drive automatically at this time. He didn't want to attract zombies and insects to his location.

His gaze returned to the blueprint of the bus.

The remaining green "+" signs were still there, indicating that there were still things to add.

Despite his happiness, Lucas didn't hesitate and quickly clicked on the option for "motorcycle parking room."

In fact, Lucas had considered this issue before.

Although the super motorcycle wasn't heavy, it would still be inconvenient to lift it onto the bus. Moreover, it could potentially cause trouble at critical moments.

The description of the "motorcycle parking room" stated that the rear side of the bus's body shell could be folded down halfway, forming a ramp. The motorcycle could directly ride onto it and be secured in a device at the rear side of the body without taking up much space.

This function seemed very practical, and Lucas was quite satisfied with it.

Looking at the bus blueprint again, all the green "+" signs had turned gray.

No more additions could be made to the blueprint. Lucas felt a bit regretful, wishing he could add a "drone control console."

At least he still had two red capsules, so Lucas didn't have any lingering regrets. He was ready to close the panel.

That's when he noticed that a few words appeared in the upper-right corner of the bus blueprint.

"Level 1 Bus +"

The "+" sign was red.

Lucas quickly clicked on it and read the description. After adding two more functions to the bus, its level had increased.

According to Lucas's understanding, this "+" sign probably meant that the bus would gain more functions and might be upgraded to a Level 2 Bus.

Seeing this, Lucas felt a strong determination to make a significant impact in this post-apocalyptic world.

Lucas quickly opened the first red capsule.

"Congratulations, host, for obtaining one dose of infection immunity medicine."

"Congratulations, host, for gaining a strength boost. Strength +10."

He clicked on the explanation.

"Infection Immunity Medicine: After use, it can grant immunity once from initial (including red-level) zombie and red-level insect infections, as well as mushroom spore infections."

Another pleasant surprise.

In simple terms, this medicine meant that Lucas had gained an extra life during the initial stage of the apocalypse, which lasted for about a month.

Lucas felt that this item was more valuable than everything he had obtained before.

At least that's how Lucas understood it.

As for the other physical attribute boost, Lucas didn't feel much excitement.

His strength was currently at 71, still within the range of a normal adult according to the system.

Soon, Lucas opened the second capsule.

"Congratulations, host, for obtaining one opportunity to use the novice-level old spell Flame Fist. The skill is effective for 60 seconds."

"Congratulations, host, for gaining a strength boost. Strength +10."

"Old spell?"

"Flame Fist?"

Lucas was a bit puzzled. He had never heard of these things, but they seemed quite powerful.

He clicked on the explanation.

"Novice-level Flame Fist: It has the power to instantly kill red-level infected individuals and insects."

The fewer the words in the explanation, the more powerful it was.

Indeed, this item was very impressive.

Instant kill!

Lucas was starting to feel a bit numb. It was the aftermath of receiving too many surprises.

After surviving in the apocalypse for so many years, Lucas had heard of and seen many impressive evolved humans.

But when it came to being able to instantly kill red-level insects, those evolved humans were quite rare.

At least in the eleven years that Lucas had been alive, he hadn't heard of it happening many times.

Of course, Lucas belonged to the bottom-tier survivors, so he naturally hadn't encountered many truly powerful evolved humans.

"Well, even though it can only be used once, it's like having an extra life within this month."

Lucas's mindset was unprecedented at this moment.

In less than five minutes, he had gained two extra lives within this month. The apocalypse didn't seem as terrifying anymore.

At this point, Lucas looked up at the yard and quietly turned around, heading towards the discovery of the metal-roofed house.

Lucas decided to wait until the battle in the yard was over before making a move.

But no matter what, he felt that the possibility of returning to the yard was very slim.

Whether the military won or the insects and zombies wiped them out, Lucas didn't care.

He just wanted to wait for the right opportunity to take the bus and leave.

After walking a few steps, Lucas suddenly turned around and called out to the infected dog.

As his voice fell, in the darkness, a black shadow quietly followed behind Lucas.

"This guy has done a lot today. I should give him a reward."

Muttering to himself, Lucas nodded as he looked at the shadow behind him.