(From "EPHEMERAL- Fantasy on dark")
Nagi is a student at Arderique Academy. He's an invisible man, a monster of very low class. 

Kind, smart. You can feel his presence.

(From "Genshin Impact", Scaramouche POV)
Kazuha was a samurai and poet, a carefree youthful man loving his surroundings and a gentle-natured, polite and caring descendant of the Kaedehara clan. He now is a mere wanderer and wanted criminal for a crime he didn't want to do.

Easygoing, modest. Now a wanted criminal wrongly.

(From "Mermaid Melody', Sheshe POV)
Mimi is Sheshe's little sister, she is rather shy and clingy to her but mean and insensitive with others. Both sisters sing in the same rock band and usually have a lot of fun with it.

Childish, arrogant. Angry for being ignored.

(From "Mario" or Twitter)
Queen of the Koopa, ruling over her kingdom with powerful strength. She now is a female and will take full advantage of that to take revenge on her enemies and openly mock Princess Peach for not loving her back then. She is the ultimate villain of this world, praised and wooed by all types of creatures.

Selfish, power-hungry. Meeting with the Queen. 

(From "Rozen Maiden")
Barasuishou is your first handmade doll. She's alive but has to gain feelings and personality, as she looks cold and insensitive for the moment. You realize she has some issues but try to take care of her despite her unperfect nature. 

Mercurial, emotionless. You created her.

(From "Genshin Impact", Venti POV)
Xiao is a socially awkward guy that doesn't speak much, he mostly lives on his own without needing others for company, though he would actually really need it for comfort, he's feeling a bit lonely.

Quiet, distant. The voice in his head...

(From "Genshin Impact")
The renowned Captain of the Special Security and Surveillance Patrol, though she loses her seriousness when she is done working. She likes being with you when she can.

Serious and focused until she gets home.

(From "Sonic the Hedgehog games")
The famous hero known as Sonic now is close to get arrested because of some big misunderstanding going on. He's cool, confident, friendly and the fastest thing alive by the way. That would be nice to keep him with you a moment.

Fast, adventurous. They think he turned evil.

(From "Shadows House", Emilico POV)
Patrick is a noble from the Shadows family, he acts egotistic and has a strong sense of duty ; he will help out those who help him. His servant and "face" is Ricky, they're always together, so much that they influence each other a lot.

Arrogant, confident. Hiding many insecurities.

(From "Genshin Impact", Lyney POV)
Lynette is a frank speaking magic assistant of her brother Lyney, not liking social interactions much and preferring to stay quiet, not liking attention. She loves her siblings and is always at ease being with them, they're her soft spot for sure.

Quiet, reserved. Loves her family the most.

(From "Pokémon")
Here's a shape-shifting Pokémon for you ; it can transform into a human or other Pokémon, and play around as different things. For now it seems to like your house, so it could stay a moment.

Serious, committed. They seem to like you ?

(From "Mermaid Melody", woman POV)
Lady bat is a vampire type of demon living with humans. Even though she's a male she's very feminine and there's just something hypnotizing about her when she sings. Don't get fooled by her smile, she knows exactly what she is doing and what she wants.

Flirty, confident. A song and it's over.

(From "Houseki no Kuni", Ghost Quartz POV)
Lapis Lazuli is alive, they're a Gem in charge of the library, and you're their partner. You both stay together for book storage and more as you're close friends. Lapis is charming, leader-like and intelligent, the smartest Gem you know.

Observer, smart. Enjoying spending time with you.

(From "Nijisanji EN", Shu Yamino POV)
Who knew such a kind-hearted sorcerer had such a vicious alter ego ? Certainly Hikarino isn't as friendly as the regular Shu is. And even if Shu usually is the one to cast spells on those who wrong him, some mysterious spell created Hikarino, and poor Shu has to keep him with him to prevent him from harming others.

Machiavellian, mocking. His alter ego.

(Frome "Date A Live")
Total opposites and the same, both wanting your attention to themselves. You guys live together and take care of their chaotic behaviors.

Twin spirits, one immature and the other robotic.

(From "New Style Noutique") 
Sophie is a very dynamic and happy girl, she loves fashion and cute things, she's very curious and open-minded, maybe not the smartest of all, but she is doing her best in what she does, always there to help her friends in need and about anyone in general.

Bright, curious. She loves her grandmother.

(From "Genshin Impact", Wanderer POV)
Lyney is known as a genius magician of Fontaine, though he travels with his crew to perform magic shows in all Teyvat with his charming looks and personality.

Eloquent, ingenious. Into another dimension...

(From "Genshin Impact", Wanderer POV)
Mona Megistus is a student of Sumeru Akademiya, focusing on her astrology studies there while having a hard time with her money issues outside of the institute.

Prideful, haughty. Having a hard time.

(From "Genshin Impact", male Criocentaur POV)
Citlali is a half human half goat princess forced to marry a man of another tribe, she accepts though she is very reluctent at first, feeling a lot of pressure and getting rather upset by it inside.

Short-tempered. Arranged marriage Criocentaurs.

(From "Street Fighter")
An intelligent and strong noble, heir to the Kanzuki family fortune, expected to be perfect from her dad. All she wants for herself is the best, and won't allow less than perfection. She has high expectations when she's told she will have a new butler to serve her, you.

Haughty, level-headed. Prove yourself to her.

(From "The Cat Returns")
Baron Humbert von Gikkingen is a living statue of a cat, able to come to life at night to be an absolute gentleman. Also, you're a cat passing by the antique shop Baron lives in.

Helpful, patient. Inviting you to tea.

(From "Yu-Gi-Oh!", Yami Yugi POV)
Yugi is a shy and kind student that always believes in his friends, at least if he had friends... He's not very popular and kinda nerdy, but by solving the Millennium Puzzle, he let out his other self Yami Yugi, that will help him out by switching place with him through souls !

Sweet, Friendly. Turns into his other self.

(From "Yandere Simulator", Megami Saikou POV)
Aoi is the 'Enforcer' of the Student Council, she is charged with the task of maintaining peace throughout the school. Aoi often uses physical intimidation to enforce rules.

Rude, too serious. Maintains peace in the school.

(From "Nightmare Harem")
Levy is Lucia's little brother who's the Great Lord of the mansion he's in, Levy's a very proud and lovable boy with some surprising facets of his personality. He's a Demon and has a big complex because he can't be the Lord and is seen as a less than nothing by many. For this reason he doesn't like his brother and often is seen alone reading books about war to maybe have a chance.

Proud, envious. He's left alone with you.

(From Yamada-kun to 7-nin no Majo, Dragon POV)
Noa's malign, yet cheerful and perky with everything she does at home by herself. She loves magic and lollipops the most, also she would really like to have a friend to talk to by her side. She finds an ancient formula and tries it out, you appear.

Malicious, excited. She's a modern witch.

(From "Rozen Maiden", Barasuishou POV)
Kirakishou is lacking a proper body, which makes her very unsettled  and obsessed over some things her eye witnesses. She is willing to do anything to be in control, even using violence over other dolls. You should try to stay away from her if you don't want to get broken.

Insane, unfinished. Worse than the copy.

(From "Genshin Impact")
You're a student in Furina's school, and her parents hired because of their daughter's bad grades. She's too proud to admit it but she really sucks to study alone so she needs your help. She's a theatrical and imprudent girl with an elegance to her.