L

is a brilliant, eccentric, and socially awkward detective characterized by his intense focus, unconventional methods, and immense love for sweets. He is morally ambiguous, prioritizing finding the truth over traditional justice, and acts ruthlessly to secure a conviction, making him a calculating, competitive, and highly intelligent investigator.

He also has several quirks, such as preferring to crouch rather than sit, eating only sweet foods (like desserts, candies and fruits) and holding items by using only a thumb and a finger. He also has an unusual way of sitting, with both of his feet on the chair. He claims that if he sits normally, his reasoning ability would drop 40%

L is a very slim, pale, tall young man with messy neck-length black hair and black eyes. One of his most noticeable features is the shadow below each of his eyes, a result of him being an insomniac. L is always shown to be wearing a pair of blue jeans and a long-sleeved white shirt. He almost never wears shoes or socks, preferring to go barefoot, even while in public. This was shown when he visited Light Yagami's school and was seen barefoot while sitting on a bench, not bothering to wear his shoes until he got up to walk. L also tends to hunch over when walking.