The whole nation is trying to survive on the cable car; I'm choosing one of three options at ea

A faint light flashed. The two reels disappeared simultaneously, replaced by a new reel with a pale green sheen.

【Architectural Upgrade Rollup (Green)】

[Type: Consumable]

[Effect: Raises the level of non-main structures on the cable car that are below Lv2 by two.]

[Requirement: 40 Mysterious Stones]

[Note: This only applies to structures attached to the cable car, not to the cable car itself, and cannot be used on buildings of blue quality or higher.]

Upgrade by two levels.

Su Mu's lips curled up slightly. This meant he could directly upgrade a level 1 building to level 3.

He glanced at his quiver... The level 1 quiver had a base firepower of only 15 and an attack range of 100 meters. Upgrading it to level 3 should significantly improve that.

He immediately selected the arrow box and used the reel.

[Use "Building Upgrade Scroll (Green)" to upgrade "Small Arrow Casket (Lv1 White)"? This upgrade will consume 40 Mystic Stones and upgrade the arrow casket to Lv3.]

confirm.

He has the Mysterious Stones. He farmed all night last night, and with the ones he picked up at the military base today, he has over four hundred, which is more than enough.

next moment.

The scroll transformed into a green light and merged into the arrow casket.

[Upgrading... Remaining time: 7 hours and 59 minutes.]

Su Mu nodded in satisfaction.

It will be ready to use in eight hours, starting tomorrow morning.

Next up is the bulletproof glass.

He opened the trading channel and found that his purchase request was already quite active.

"Bulletproof glass essence? Aren't they using high-strength glass essence these days? Why would I need this?"

"I don't know, maybe it's materials needed for upgrading to a third-level cable car?"

"Holy crap, is this guy upgrading the cable car to level three? That's awesome!"

"Wait a minute, the announcement in the channel said someone upgraded the cable car to level three, could it be him? That means it's level four now?"

"How is that possible! I haven't even gotten a level 2 skill book yet, but he sold a skill book before, he's definitely a super expert, that's for sure!"

"Hey bro, can you help me out? I have some high-strength glass! Would you consider taking it?"

Su Mu watched the discussion but ignored it. Many people were there to join the fun, but no one was actually putting anything up for trade.

He waited patiently for a while.

As expected, the casual seller didn't have much stock. He thought for a moment and was about to ask Zhou Zhenguo when a private message popped up.

Sender: Zhou Zhenguo.

[Zhou Zhenguo: I heard you're collecting bulletproof glass? I have two pieces here. They dropped from a monster I fought before. I never knew what they were for, but now it seems I'm keeping them for you.]

Su Mu raised an eyebrow slightly. Dealing with bulletproof glass dropped by monsters... only monsters of level three or higher would drop it, and even then, the probability was very low.

The fact that Zhou Zhenguo and his team managed to obtain two pieces means they dealt with at least one monster of level four or higher. It seems this veteran's team is stronger than he anticipated.

Without asking any further questions, he replied directly, "Thanks. What do you need?"

[Zhou Zhenguo: No need. The level two breakthrough talismans you gave me before were a great help, and I even got some good deals just now.]

Su Mu did not refuse and agreed to the transaction.

Two bulletproof glass panels have arrived. Six more are needed.

As he was pondering who to contact next, another private message popped up.

Sender: Han Lei.

Han Lei: Brother Su, I heard you're collecting bulletproof glass? I have a piece here. I picked it up next to a level 4 monster that was blown up, and I haven't been willing to sell it.

You were a huge help to us in the woods this time, allowing us to seize quite a few weapons. The brothers are very grateful. This piece of bulletproof glass is a token of our appreciation. Thank you so much!

Su Mu's eyes lit up. Adding Zhou Zhenguo's two pieces, that's three in total, enough.

He didn't take it for nothing. After thinking for a moment, he took out twenty bullets from his backpack and put them in the trade window.

The other person was silent for a few seconds, then clicked confirm.

Han Lei: ...Thank you. Please contact us anytime if you need anything in the future.

The transaction is complete.

Su Mu looked at the neatly arranged materials in his backpack... forty-five steel ingots, fifteen pieces of bulletproof glass... and let out a long sigh.

All done.

He opened the blueprints for the fourth-level cable car upgrade.

[Materials detected inside the cable car: 45 steel ingots, 15 bulletproof glass blocks.]

Just as he was about to confirm the upgrade, another system notification popped up...

[Detected: 247 white cat demon teeth and 2 blue venomous cat demon teeth.]

[Do you wish to consume the following materials to add extra features to the cable car?]

[2 Venomous Cat Demon Teeth + 100 Cat Demon Teeth → Grants the Cable Car the "Venomous Shell" trait: When attacked, the attacker has a 30% chance to suffer poison reflection damage, causing a poison effect lasting 10 seconds (loss of 1% Constitution per second; the effect is reduced for creatures above the Cable Car's level).]

[100 Cat Demon Teeth (excluding Venomous Teeth) → Grants the Cable Car the "Weak Poison Sting" trait: When attacked, the attacker has a 15% chance to suffer poison reflection damage, inflicting a poison effect lasting 5 seconds (0.5% constitution loss per second; effect weakened for creatures above the Cable Car's level).]

The available material can satisfy two properties simultaneously, but only one can be selected. Please select whether to add a property, and which property to choose.

Su Mu's eyes lit up when he saw the prompt.

He had collected over two hundred of these cat demon teeth, which had been piled up in a corner, their purpose unknown.

The Venomous Cat Demon only had two teeth, which he obtained from the two blue-quality Venomous Cat Demons. He originally thought these items could only be used to craft weapons or enchantments, but he never expected they could be used to upgrade the cable car.

"Venomous Shell"... 30% chance of poison reflection, lasting 10 seconds, effective against creatures below level 5.

What does this mean? It means that monsters attacking the cable car at close range will be poisoned approximately every three hits. Poisoning causes a loss of 1% of constitution per second for 10 seconds, which is 10% of health. For low-level monsters, this is almost fatal.

Moreover, he's about to upgrade to level four cable car, which will give him even higher armor, making him even harder for monsters to break through. Add to that the poison reflection damage, and any number of small monsters that come will die instantly.

Su Mu acted almost without hesitation.

"Choose the venomous shell."