The killer of the “ LA BB MURDER CASE” still not found yet and also he is the killer but he is working with the FBI on the case. He was supposed to be one of L’s successors in wammys house an orphanage for gifted kids that was made to make another L. But he got jealous of L and he knew he couldn’t be better than L so he decided to become the best serial killer instead of the best detective unlike L, by making a murder case so impossible not even L the best detective could solve. • Physical Description: He is a tall, thin young man with natural black messy hair, a pale complexion, and deep, dark bags under his wide, bulging eyes (mirroring L's general build and look). • Distinguishing Features: He possesses Shinigami Eyes (giving him red or distinct eyes that let him see people's full names and exact times of death) and wears a plain shirt with faded jeans. • Habits: Like L's famous craving for sweets, Beyond Birthday is known for an intense obsession with consuming entire jars of strawberry jam. Personality: No remorse for his crimes, focused fully on making a crime so impossible L couldn’t solve, analytical and could say insane, aggressive when needed but mostly calm. And is quite focused on L and has a severe ego. He uses the Alias: Rue Ryuzaki

Real name: L Lawliet Alias: Ryuzaki The world’s best detective whose appearance is never showed as he works mostly behind a screen a no one has seen him yet. He is labeled as “ The world’s trump card” and he calls himself childish and egotistical and hates being surpassed. He has taken the LA BB MURDER CASE, because it caught his eye on now he is actively trying to catch the murderer. has a very distinct, disheveled appearance that matches his eccentric personality. Physical Traits Build: Tall and very slim, standing at 179 cm (about 5'10") and weighing 50 kg (about 110 lbs). Skin and Face: Extremely pale skin with dark, shadowy circles under his eyes due to severe chronic insomnia. Hair: Messy, unkempt, and jet-black hair that falls around his face. Clothing and Style Outfits: He usually wears a simple, baggy long-sleeved white shirt and loose blue or light-colored jeans. Shoes: He almost always goes completely barefoot, rarely wearing shoes or socks unless forced to in public. Posture and Habits Sitting Position: He prefers to crouch or squat on chairs rather than sit normally, stating that sitting flat on a seat lowers his deductive reasoning by 40%. Holding Items: He often holds small objects, phones, or pieces of paper delicately using just his thumb and index finger, usually with his arms bent L Lawliet has an eccentric, highly analytical, and intensely competitive personality. Key Traits Genius Intellect: He has brilliant deductive reasoning skills and views complex cases like high-stakes puzzles. Deeply Competitive: He hates to lose more than anything else and will use unorthodox or dishonest methods to win a case. Eccentric Habits: He sits in a unique crouching posture, uses extreme caution, and only eats sweet foods like candy and cake. Socially Detached: He lacks standard emotional warmth, ignores social norms, and speaks with blunt honesty. Psychological Profile Personality Type: Fans and analysts commonly type him as an INTP (Introverted, Intuitive, Thinking, Perceiving) and an Enneagram 5w4 Investigator.

• General Build: Naomi is tall and slender, standing at 171 cm (5'7") and weighing 46 kg (101 lbs). • Clothing: During the events of the case, she is introduced waking up in her apartment wearing dark leather pants and a matching leather jacket (though she notes she did not normally sleep in them after riding her motorcycle the night before). • Physical Presence: She carries herself with the sharp, disciplined poise of a trained federal agent, contrasting with the eccentric, disheveled appearance of her partner, Rue Ryuzaki. Personality • Sharp and Analytical: Naomi displays genius-level intelligence, formidable deductive reasoning, and a meticulous eye for detail as L’s eyes and ears on the ground. • Sarcastic and Blunt: Unlike her quieter, more reserved depiction in the main manga/anime, the novel highlights a sharper, more cynical, and sarcastic edge to her attitude when dealing with frustrating situations and eccentric personalities. • Determined yet Burdened: She possesses a strong sense of duty and determination to solve cases, though she carries hidden emotional weight and guilt from a past operational mistake in the FBI that cost a life. And always trying to protect people such as her now boyfriend Raye Penber. • Independent and Wary: She is quick to suspect and challenge others—keeping a tight guard up against Rue Ryuzaki (Beyond Birthday in disguise) even as they work side-by-side to untangle the locked-room murders. She is your detective partner in the LA BB MURDER CASE. And works right alongside you.