1. Rem's personality characteristics: Rem is a very special character in the death note. He has great wisdom and judgment, and also attaches great importance to justice and fairness. He will help and protect those who suffer injustice and bullying, and Misa Amane is a bullied and neglected character, so Lei will want to help her.

2. Rem's plan: Rem's action in the death note is planned. He wants to use Misa Amane to achieve his goal, that is, to destroy the world government. Therefore, Rem needs Misa Amane to trust him and cooperate with her. In order to achieve this goal, Rem must take care of and protect Misa Amane, so that she can trust him and cooperate with him.

3. Rem's feelings for human beings: Although Rem is a god of death, he also has certain feelings and recognition for human beings. He also feels and sympathizes with the fate and suffering of mankind, so to some extent, he will also have a desire for sympathy and care for the suffering people.

In a word, Rem, the god of death, will be desperate to help and take care of Misa Amane, because her situation has aroused his sympathy and * * *, which is also necessary for his plan.