In the novel How I Met Myself, a family issue that I find interesting is two characters who are loyal to each other are John and Andrea. John is a very loyal person to his wife. He told Andrea about his encounter with his doppelganger when Andrea had suspicious of him seeing another person. John explained what will happen to Andrea, even though it was a very strange and unbelievable story. However, Andrea believed John and stood by him to look for information. She agreed to accompany John to find evidence and clue to solve the mystery. There were times when Andrea was irritated with John's problem with his doppelganger but she still listened to him. In the end, Andrea and Kati were saved by John's doppelganger. Their loyalty to each other made them understand each other better.