Wolfberry is not Tasty

As a video uploader who owned a model aircraft online store, Tang Rui suddenly discovered that the model aircraft he made had an upgrade panel that allowed him to add upgrading points to it.
[Item: Fixed Wing Model Aircraft]
[Experience: 35/100]
[Sources: 0.1]
For a couple of hundred yuan, Tang Rui upgraded the body of the aircraft to a proportional level, perfectly replicating the dashboard in the cockpit. He also added some enhancements, turning its EPO body into an aviation-alloy one.
Tang Rui said, "System, show me your limits."
From toy model aircraft to high-altitude, high-speed drones, and then to small-scale orbital shuttles...
With the system panel in his hand, it would be too unambitious of him to just be a video uploader on a small website instead of creating a military weapons company and becoming famous.

My Items Have an Upgrade Panel

The captain of the Japanese submarine and its crew were left dumbfounded.

The submarine was cruising smoothly, when suddenly, without warning, the rudder vanished.

Was this a supernatural occurrence?

A quick check of the water pressure confirmed they were indeed 300 meters beneath the surface.

A gulp of saliva slid down their throats.

The Japanese submarine captain shouted, "Activate the active sonar! Report our situation to headquarters!"

Several Japanese crewmen immediately nodded.

With the activation of the active sonar, they discovered a mysterious sight: a group of deep-sea phantoms, gracefully circling their submarine at an eerie pace.

Upon seeing the sonar readings, a shiver ran down the spines of every Japanese crewman.

They had mistaken frogman troops for deep-sea spirits.

Old Feng, I Need Your Help (Part 1)