C81 The Sound of Choking Could be Heard

Pick up the necklace, there's a letter down there, that's Mom's notes.

Xixi:

Life is unpredictable. This is the only conclusion Mom has in this life, so she still wants to leave something for you. If Mom suddenly leaves you one day, you will have a good idea.

Mom never knew who her dad was. This chain is the only memory that Dad left for me