I'm Five Feet Tall, and I Build Mechs by Hand to Save the World

The good news: I transmigrated, became the son of a hero, and awakened a golden finger.

The bad news: I'm stuck at five feet tall, my golden finger is a “background compiler” that requires me to start with basic physics, and aliens will invade in just five years!

The even worse news is that this golden finger seems a little off...

I wanted to develop a “height-increasing potion” for myself, so I secretly analyzed my mother's life potion.

I combined [Accelerated Cell Regeneration] with [Gentle Water Element Infusion] and ran a sandbox simulation.

The result: I made the potion, then fed a drop to the cactus in our potted plant. Overnight, it grew into a three-story-tall “Desert Overlord Flower” and nearly tore the house apart!

Mom, brandishing a frying pan: “Lin Yu! How many times have I told you? No introducing invasive species in the house!”

I wanted to keep a low profile in martial arts class, so I secretly analyzed Dad's [Hundred Battles Fist].

Using its techniques as a model, I made myself a [Dynamic Balance Support Belt].

The result: During a sparring match, Lei Ao threw a punch. The belt automatically triggered the optimal dodge, my foot slipped, and I performed a perfectly executed Thomas flair, spinning his pants right off.

All the girls at school: “Whoa~”

I really just want to quietly be a tech nerd and grow a little taller on the side!

Why does everything I build by hand always go in such a weird direction?

(Watching the “Mech Suit Performs ‘Paradise’ to Mentally Corrupt the Enemy” plan being simulated in [Sandbox Simulation], I fell into deep thought.)