[Plot-Driven + Original Worldbuilding + Giant Beasts]
My name is He Nai Rosen. I'm rich, handsome, and muscular, and I have the cutest little sister in the whole city.
Before I turned twenty, I thought my life was all about drinking, fighting, and chasing women.
Then, on my twentieth birthday, the butler told me:
My father was killed by a red-haired giant beast. That thing had lived for over a hundred million years, and its epithet was “God of the Molten Flame Prison.”
I laughed right then and there. “It's just a dog. I'm going to kill it.”
The butler taught me a gravity spell. I trained for half a year, then punched through an underground fighting ring and slapped a fish-man monster flying.
Later, I fell into the lair of fighting dogs and rode an underage pup back to the human world.
Why go to such lengths?
Because once I kill that god, I can marry the princess.
On the Night of the Scarlet Revelry, I came, I saw, I slew a god.
[Plot warning!!! Dear readers, if you can't handle the protagonist going through hardship, you'd better not read this story. The protagonist suffers a little. Readers who can't accept the heroine should also stop here.]
(I started writing this work in high school. No matter what it's like, I want to publish it, because I poured so much thought into it ₍ᵔ•ᴗ•ᵔ₎)