I need a synopsis of the plot of L's movie "The Last 21 Days"!

Plot synopsis · · · · · · ·

Criminals who committed murder and swindled goods died mysteriously one after another. People regarded Kira, who punished evildoers for justice, as their savior, and the police were helpless. L, a talented boy who specializes in solving strange incidents, concluded that Kira had a 97% chance of being in Japan, so he left Los Angeles and flew to Japan. Before leaving, L had a faint premonition in his heart that he might never come back.

L had a head-on confrontation with Kira, Light Yagami. At this time, a small village in Thailand was wiped from the earth. Little did L know that a major conspiracy that could destroy the world was brewing.

L set a trap at the cost of his own life and prepared to defeat Yagami Yue in one fell swoop. Unexpectedly, his long-time partner Lao Du died unexpectedly. L decided to solve the tasks left by Lao Du in his last 23 days. A helicopter delivered a box of gifts to Lao Du, and inside was a boy - he was the only survivor of a destroyed Thai village. L learned from the disk data carried by the boy that the incident was related to the horrific murder virus. At this time, the girl Maki came to Lao Du with her father's belongings, and she was also a victim of this conspiracy. The killer who was following him had arrived, and L took his two children and fled.

With 6 days left, can L, who has never been good at outdoor activities and lost his right arm, escape the crisis? Can the terrible god of death created by human beings be eliminated?