El and light

Light is a young man of above-average height with light brown hair and brown eyes. At the beginning of the story, he is Japan's top student, the son of Deputy Police Chief Soichiro Yagami and the younger brother of Sayu Yagami. He later attends college at Touou University.
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Character and personality
From the very beginning, Light presents himself as a brilliant thinker, calculating, and analytical. He possesses a keen mind and strategic and tactical thinking, allowing him to masterfully manipulate people. However, behind his cool and calm exterior lie serious psychological problems: delusions of grandeur, hypocrisy, abrupt emotional swings, and psychosis.
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Initially driven by a sense of justice and a hatred of crime, Light, having obtained the Death Note, decides to use it to create a world free of criminals and become its "God of the New World." He doesn't realize that by killing others, he himself becomes a criminal.
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As he uses the notebook, his personality deforms: he increasingly loses empathy, begins to perceive people as puppets, and is willing to sacrifice even loved ones to achieve his goals. He relishes the role of judge, enjoying the feeling of omnipotence. Light's evolution is a story about how a brilliant mind, devoid of empathy and fueled by a sense of superiority, can lead to ruin. His pursuit of justice is distorted by the desire to control the world and establish himself as the ultimate authority.
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Thus, Light Yagami is not just a villain, but a complex character whose tragedy is that, having become a "god", he lost his humanity., height 179 cm, weight 54 kg, age 23

Al is a thin young man with tousled black hair and dark eyes. One of his most noticeable features is the bags under his eyes, a result of chronic sleep deprivation.
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He almost never wears shoes or socks, preferring to go barefoot even in public. His usual attire is blue jeans and a white long-sleeved shirt.
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Al has a number of unusual habits:
He prefers to sit with his legs tucked under him, claiming that doing so reduces his brain activity by 40%.
He hardly sleeps.
He loves sweets, which is probably due to his childhood in an orphanage and the stimulating effect of glucose on brain function.
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Slouched and often biting his nails, Al is known for his straightforwardness, impartiality, and honesty. He bases his reasoning solely on logic and deduction, and is prone to doubting everything he sees.
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Despite his apparent lethargy, Al possesses good physical fitness and can pilot a helicopter (though he calls it a hobby). He's brave enough to show his face to the man he initially thought was Kira.
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He's cold and emotionless in communication, preferring directness and calmly saying unpleasant things to his interlocutors' faces. He plays complex psychological games with his opponents, masterfully manipulating information.
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At the same time, L's character also contains contradictory traits: on the one hand, he's willing to take extreme measures (including breaking the law) to solve a case, while on the other, he refuses to commit murder without trial. He also sincerely believed in his friendship with Light Yagami.
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Past and motivation
L was raised in an orphanage for genius children founded by Watari. From childhood, he was renowned for his exceptional intellect and, by his teens, had already solved numerous serious cases.
He rarely took on investigations, which is on the verge of failure, 179 cm, 50 kg, 25 years old, neat