You Call This a Rivalry?

Quick version:

#Reborn and picked up my nemesis as my son, but mistook him for someone else#

#The security guard I hired keeps looking at me strangely#

[An aloof, high-and-mighty bottom who looks down on everyone * An eccentric, high-energy top who goes "Hey, honey, I'm your dog," and is the strongest fighter alive]

Synopsis:

In a world undergoing global evolution, Yu Mian and his longtime nemesis, Sikong Su, die in a fierce battle. Yu Mian is reborn many years in the past.

With his seemingly cheat-like ability to "force people to sleep and read their minds," Yu Mian returns to his position as an adjudicator in the Judgement Bureau, where his main duties are to judge criminals and suppress them when necessary.

After rising to power, he makes a name for himself with his extraordinary beauty and exceptionally ruthless methods. To fight violence with violence, Yu Mian bails out the bureau's most notorious criminal and hires him as a henchman.

Before long, he realizes something is off about the man.

For instance, he always smiles happily when slapped.

For instance, his gaze is always burning with excitement when he looks at Yu Mian.

And for instance, Yu Mian can't read his mind.

Thanks to the man's absurd fighting prowess, Yu Mian can't bring himself to replace him just yet. He figures the man is probably just a lovesick puppy, and he can kick him to the curb once he finds someone who fights better.

Then one day, Yu Mian finally sees through the man's act.

And what else is revealed along with his true nature but a set of sharp fangs...

Yu Mian wakes up covered in kiss marks, his legs weak and his back teeth nearly ground to dust.

"Sikong Su, I'll fucking kill you..."

"Sure, sure."

"..."

The first thing Yu Mian does after regaining power is haul a badly injured little boy out of an underground fighting arena. The boy appears to be his destined nemesis and the strongest combat-type esper: Sikong Su, in his battered teenage form.

Adopted by Yu Mian, the boy remains on high alert. When he expects to be treated as a disposable tool and thrown back into the arena, he discovers that Yu Mian only does two things to him:

1. Adds the character "cao" to his name.

2. Puts his hair in braids and buns, then dresses him in skirts.

The boy, Sikong Xiao, is determined to get revenge every day for this behavior, which isn't physically harmful but is deeply humiliating. Yet he never expects that once he's recovered, Yu Mian will send him to the best school.

Yu Mian soon realizes that this child isn't Sikong Su at all.

He's mistaken someone else's son for his own and let a wolf into the house.

The real Sikong Su has also been reborn. He breaks into a secret laboratory alone at the first opportunity, carries off a boy who looks like a beautiful doll from the operating table, and gives him a new name: Yu Xing.

The two boys not only become desk mates, but may also be puppy-love sweethearts.

Reader's Notes ovo:

⭐ Tsundere and vicious dog, both reborn, 1v1, younger love interest, happy ending.

◇ Still a romance between parents, with a boy-boy side couple.

◆ The protagonist bottom is beautiful and powerful, a bright moon hanging high and shining on the top; they are mutually devoted.

◆ The protagonist top is obsessed with being a dog, wagging his tail like a helicopter rotor, and loves getting jealous of every carbon-based life-form and inanimate object around the protagonist bottom.

◆ Readers who dislike any of these elements or have strong top/bottom preferences, please proceed with caution.

Theme: Study hard and aim high.