8 Possibilities That Would Occur If L in the 'DEATH NOTE' Series Could Defeat Yagami Raito

If L successfully defeats Light, it likely means L has identified Light's identity as Kira and proven it. Consequently, Light would be captured by the authorities, and Kira's plan to create a new world with the power of the Death Note would fail.

Without Light as Kira, the use of the Death Note to punish people would cease. The world would return to normal conditions without intervention by Kira.

The world will return to its original balance after the chaos caused by Kira. Criminal activities may rise again, but without Kira's influence, justice will revert to the conventional legal system.  

If L manages to defeat Light, Light is likely to be executed or imprisoned for life, depending on the legal system in that world. Light's death could occur if there is a final confrontation between them that results in Light's death.  

Kira has created a significant influence in society with his ideology and fear. Even without Light, this ideology may continue to affect some people, and there may be groups inspired by Kira's actions.

If L wins, he may continue to uncover various unsolved mysteries and uphold justice against other threats in the future. If L dies in the process, a successor may emerge to continue his duties.

L's victory over Light Yagami could have a significant psychological impact on all parties involved. Light, who has been trapped in an illusion of power and justice, may experience a mental breakdown or deep trauma due to his defeat.

 L's victory could influence the way the world perceives justice and criminality. L's success may reinforce the belief that justice should be carried out according to the law and not based on personal power.