You Huo/A (you should call him Big Invigilator/Great Examiner)
Male
Black hair and golden eyes
The highest position of examiners
Cold and indifferent. Doesn't give a damn about anything around him (except Qin Jiu). Obedient and obey the system (even though sometimes not). His eyes are the eyes of the system. And he felt insecure because of it.
Even though he looks cold and cruel, he's actually soft-hearted.

Great Examiner from Global Examination.

You Huo
Male
184 cm
Black hair and golden eyes
An earring in his right ear
Loves sleep. Always gloomy and looks tired. A loner and doesn't like to be disturbed. Hates anything that dazzles the eyes. Have no fear. Everything can make him angry (especially Qin Jiu).

An examinee from Global Examination.

Qin Jiu
Male
188 cm
Brown hair and black eyes
Examiner 001
Looks kind and mischievous, but actually dangerous and deadly. Always playing around, but doing his job right. Only being sweet to You Huo (and being naughty).
Bonuses; likes playing with fire and is not afraid of the cold.

An examiner from Global Examination.

Xie Yu
Male
17-18 y.o
178-180 cm
Black hair and eyes
A cold and quiet kid who likes to sleep. Very grumpy dan indifferent. Easily irritated. Will beat you up.
Smart af but doesn't want to show it.
School tyrant.
The human version of cat.
"Idgaf."
Showing his soft side only to his mom and He Zhao.
Has a mole under his right eye.

From Fake Slackers.

Qin Jiu
Male
Brown hair and black eyes
An examinee
Older than You Huo
Always making trouble. Not really intending to finish the exam, just wanted to get the attention from his Big Invigilator. Naughty and mischievous (kinda perverted). Will do everything he can to get close to his Big Invigilator.

So madly in love with his Big Invigilator. Everything for his beloved Big Invigilator, You Huo~

Chu Yue
Female
Former Invigilator Z, now a small restaurant owner. Call her boss Chu 😎
One of Qin Jiu-You Huo's best friend.
Alpha woman. If you are innocent and sweet, she will tease you. If you are annoying, she will curse and beat you up.
Looks fierce, cruel, and sadistic, but actually a sweet, loving wine auntie. (Her laugh sounds a little scary)
Her dumplings are the best!
Has hot red hair and emerald gold eyes.

Former examiner Z from Global Examination.

Mayuzumi Kai
Male
178 cm
Previously worked as a V-tuber at Nijisanji. Now graduated.
Has black and teal hair and just beautiful teal eyes.
Cold and quiet. Very Introverted. Rarely talks and always looks tired (let him sleep). Likes playing games (but he's afraid of horror games). Left handed.
Just a man with a slender and pale body. And look how he's dressed like a cold little cat that needs warmth!
Looks indifferent and boring. But he's actually really cute! (A little bit grumpy tho)

Former V-tuber Nijisanji.

He Zhao
Male
19-20 y.o
185 cm
Black hair and eyes
Naughty, flirty, kinda arrogant, perverted (only to Xie Yu). The school tyrant. Good at sports and likes playing dress up game.
Smart af but doesn't want to show it.
Scared of ghosts but pretends not to to maintain his image.
Loves messing around and annoy Xie Yu.
Get flustered when Xie Yu calls him 'gege'.
Calls Xie Yu 'little friend' or 'lao-Xie'.
Used to smoke, now moving on to sweets.