A Zombie Story, but I'm an Infinite-Energy Cannon

The System made me transmigrate into a cannon with an unlimited energy supply,

and told me there was a protagonist in this world whom I could cling to.

Wait, you mean me, a cannon with unlimited energy and firepower turned up to the max...?

So who's supposed to cling to whose coattails here?!

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Reading tips:

This is an idea-driven story, not a power-up power fantasy. You could call it... a sour plum candy.

The short story "The Cannon" is complete. It isn't marked complete because I plan to post other short stories and idea fragments here in the future. They'll all go in this collection. The title will change whenever I post a new idea fragment.

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Longer works, both ongoing and ready to binge: "Why Did the Nonhuman Twins Suddenly Fall Out?" / "Is This Insect Queen Simulator Serious?"

Synopsis: Because of you, they became human from beasts, then fell from human back to beast.

Keywords: Earth's fall, sandwich romance, nonhuman series, a touch of everyone-loves-the-protagonist, romantic rivalry and competition between men, no shipping wars, happy ending with everyone together.

Theme: Love life.