Bi Ryuyeon

He/She is very young, a teenager or a young adult
He has the appearance of "the most handsome young man" (he calls himself that)
He wears traditional Korean hanbok from Cheonmu Academy (martial arts disciple clothing)
He is seen with black hair typical of Korean martial arts characters
Confident, proud expression, with an arrogant but attractive face
He carries his Biroe knives (10 lightning knives, controls 6)
Elegant yet relaxed posture, always self-assured

Additional details:
His careless words and munchkin behavior contribute to creating anti-fans
He was orphaned and had nowhere to go
His wood carving skill led him to meet his master
He has about 30 years' worth of accumulated Qi
He is at least 6 stars in martial arts skill level
He took hidden treasures from the sect (Flying Thunder Saber + Ink Qin)
He won the tournament and was considered the best descendant of the year.
The crowd thought it was poison, but it was actually her shoes that smelled toxic.

Behavior and Trivia:
Greedy: Earn money aggressively, force squads to give him money
Party: Join friends at Nanchang pavilion for party
Munchkin: Behavior overpowered/exaggerated → creates anti-fans
Anti-fans: Their careless words + munchkin behavior = anti creation
Money: Acquired large sum of money
Commission: Goes for everyone to get his commission cut

History and Background:
Childhood:
She lost her father to illness when she was 10 years old.
He inherited a talent for wood carving: he could carve wood into wonderfully intricate sculptures
After completing sculptures of his parents, he was visited by an old man.
The old man was impressed by his talent and offered him the position of disciple.
With nowhere to go + wanting to make the most of life = accepted the offer
Master (Tutor):
Type: Sadistic, eccentric master
Promise: He promised her world's greatest martial techniques
Relationship: Bi Ryu-yeon says she is suffering under his eccentric master
Escape: Ran away from home by your master
Cheonmu Academy:
He entered Cheonmu Academy after Runaway
It has a connection to Suzaku Squad
He took Flying Thunder Saber + Ink Qin (hidden treasures of the sect)
Someone replaced a vacant spot = misfortune for everyone
Tournament:
Bi Ryuyeon won the tournament
He was chosen as best descendant at academy for the year
Prize: Rare Elixir + weapon
Crowd reaction: Nobody happy, they said he cheated using poison art
Reality: He didn't use poison, his borrowed shoes smelled toxic enough to kill
Rival: Beat Yoo Yeobseong (Blade Saint's Bright Saber)
Skill: Won for quick-witted (quick thinking)
Romance: Na Ye-rin (Lady Na/Rin):
Who she is: Disciple of Bingbaek Peak
Relationship: They grow closer and become officially recognized lovers
Real name: Lady Na = Rin (the same girl)
Confusion: Bi doesn't know that Lady Na = Rin initially
Lie: Bi told him "I have a senior brother who doesn't like me much"
Chapter: Revelation in chapter 197
Relationships with other characters:
Hyolong: Young man with sincere personality, gets along very well with Bi
Master: Sadistic + eccentric, Bi says he is suffering
Yoo Yeobseong: Rival (beat in tournament)
Elder Yeom: He tells her not to be greedy, but Bi doesn't listen.

Full name: Bi Ryuyeon (also spelled Ryu-Yeon Bi, Bi Ryu-yeon)
Korean name: 비뢰도
Hanja/Chinese name: 飛雷刀 (Fei Lei Dao)
Age: Orphaned at age 10 when his father died of illness
Appearance: He calls himself "the most beautiful young man in the ultimate world"
Self-assigned title: "Universally greatest genius and ultimate handsome youth"
Personality:
Arrogant but charismatic
He believes he is the greatest genius in the world
Eccentric and fun
He has "munchkin" (overpowered/exaggerated) behavior
Dice careless words and actions without thinking much.
Proud, he doesn't listen to elders
Greedy (aggressively earns money, asks for commissions from everyone)
Deep down he is sincere and has a good heart
He says he is "suffering under his eccentric master"
Weapons and Abilities:
Flying Lightning Knives / Biroe knives (비뢰문):
There are 10 Lightning knives in total
Currently, it can control 6 Biroe knives
Rule: To use 1 knife you need to master all 10 training knives
They are throwing knives powered by lightning.
Inner Cirpling in the Lightning Spirit (내원전령):
Exclusive breathing and cultivation technique to control Qi
Principle: Use energy from heaven and earth across the entire body
Key principles: Gathering (gather), Dispersing (disperse), Gentleness (gentle)
Energy passes through the entire body with the following principles: Rapid, Flash, Power, Cut
Qi is approximately 30 years old
Only with this technique can you use Biroe-Moon
Soul Threading Skill (심수금):
Exclusive mind reinforcement technique
Essence: Twist your soul into a fine thread that never severed
Requires calm mind no matter the situation
Hands of Ruling Over Lightning (뢰수권):
Qi technique (not a physical martial art)
Effect: Hands become hard as steel to handle lightning strings
Requirement: You must be at least 6 stars to avoid damage from lightning strings
Ryu-Yeon is at least 6 stars, possibly full mastery