I dont know what name i should give for the story

Characters

Name: Nova
Age: 20
Crush: Used to have a crush on someone but he gives up
Nickname(s): Agent A-12 (His boss and some of his friend call him that); Nov (Friend and sometimes family)
Ability: Fire, water and ice
Fighting style: Brawler, Beast (Most used), Breaker (only his other self have this style), Dancer (mostly used by his other self)
Job: Doctor, agent
Info: He likes to hide behind his stupidity in order to hide his real intentions. He always playing with death, and get away with it in the end, so dont get tricked by his stupidity, and becarefull, he isnt like any normal sharkmen
Fact:
- I used to have an idea that this guy can use doomain expansion (Its underwater btw)
- He is very bad at drawing, i mean, very bad
- He doesnt know how to whistle, so he sing or humming instead
- Yes, he can use Gaster Blaster, it look the same like Sans's, but its in fire or ice, its only in water ONLY when he's in his doomain, or when he get closer to death
- He is an actual idiot about romance
- If he is a boxer, his style would be freedom (yes, i play ubg, happy now?)

Name: Buneary
Age: 20
Crush: Nova
Nickname(s): Bun (family only)
Ability: Thunder, wind and ice
Fighting style: Taekwondo, Karate
Job: History teacher 
Info: A shy bunny girl, she easily get scared, but she have a great fighting spirit and potential
Fun fact:
- Until today, Nova and her family are the only people who know she have fighting potential
- I named her that because i cant think of a better name for her
- Yes, she start to likes Nova from the first time she training with him
- And yes, she have an origami bird to keep herself company (inspired by Honkai: star rail)
- She isnt a pokemon, chill out

Name: Jack
Age: 24
Crush: Cool right, he doesnt have one
Nickname(s): He doesnt have any
Ability: Thunder, outer (like summon star and stuff)
Fighting style: Officer, Punisher, Brawler (yes, i admit, i play unusual force), shark karate
Job: Police, scientist
Info: Nova's older brother, and also the oldest one out of the three. Dont provoke him, he is no chill i swear
Fun fact:
- He have a huge skill issue in flirting
- He and his dad are the only person who drink achohol more than 5 times in a year
- He's love watching cartoon, only his dad and Nova know about this until now
- If he's a boxer, his style would be charge

Name: Sakura
Age: 19
Crush: None
Nickname(s): Saku (Nova only), Pink flora (Jack and some of her friends)
Ability: Ice
Fighting style: Taekwondo, shark karate
Job: Chief
Info: Nova's younger sister, and also the youngest one. She is very energetic and always full of energy
Fun fact: 
- She know every single secrets of all member in her family, but she decide to keep it a secret for herself (no, she doesnt know Nova is an agent)
- Unlike her brothers, she know everything about romantic, and she often get bored every time Nova didnt get Buneary's hints
- She is best friend with Buneary