In response to the call for world peace, villainous monsters are no longer needed in this world.
[Ding! The Blooming Prosperity System 5678 is at your service]
One: Giant monster bottom
Qi Mingyan was just an ordinary office worker when one day someone suddenly told him that Heaven was about to entrust him with a great mission...
Qi Mingyan: "Not interested."
[We offer social insurance, a housing fund, and lifelong retirement benefits.]
Qi Mingyan: "Actually, I've wanted to become a great hero since I was a kid."
Then, staring at the enormous monster in front of him with lifeless, dead-fish eyes, Qi Mingyan said, "I think what you need more is an Ultraman."
[It's you! You, you, you!]
Later...
Qi Mingyan had lost count of how many times a monster had grabbed him in its hand like a tiny shrimp.
The System said sternly: [Transform! Hurry up and transform! Can't you transform?!]
Qi Mingyan wordlessly pulled a cat teaser wand from behind his butt.
The little monster's eyes instantly turned crystal clear.
The System: [...]
Two: Shameless pervert, genuinely strange bottom
Outsiders had three things to say about Xie Sanjiu: young, reckless, and obviously a seriously virile hunk.
That was what made him the perfect candidate to save the world.
"Make it see reason? What kind of crap is that?!"
Young, reckless, and virile Xie Sanjiu flipped the heavens the middle finger and turned to leave without looking back.
[Word is, you wet the bed at four, and cried when a mosquito bit you at five...]
Xie Sanjiu took two steps back and said in a deliberately profound tone, "Saving the world isn't out of the question... Can you help me get my wisdom teeth pulled without pain?"
Later...
Xie Sanjiu turned to run without looking back, but a cloud of black mist wrapped around him and lifted him into the air.
The System said sternly: [Think of something! Think of something! Didn't you spend some time with him day and night?!]
Xie Sanjiu impatiently put on a pair of kinky ears and said with a scowl, "Welcome home."
A lipstick mark promptly appeared on Xie Sanjiu's face.
Xie Sanjiu: "Don't look at me like that. It's just his type."
The System: [...]
Is this really how you all win them over?
Three: Extremely perverted vampire bottom
Four: Beastman bottom with muscles but no brains
Five: ...
Notes:
1. Episodic stories, happy endings
2. The blurb order is random
3. Some relationships are twisted, so proceed with caution if you're attached to the top or bottom
4. The System doesn't feature heavily
5. Don't conflate the novel with real life
Theme: Have the courage to take responsibility