Given the task definition and input, reply with output. In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: I grew up with a neighbor friend of mine. Sentence2: She was my best friend. Sentence3: She started living the wrong lifestyle. Sentence4: We went different directions. Sentence5: I have yet to find another best friend.
I (myself), My friend