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.
Q: Sentence1: Ike was playing Twister with his little brother. Sentence2: He thought since his brother was shorter, he'd definitely win! Sentence3: But Ike was surprised as they played. Sentence4: His brother was flexible and much better than him! Sentence5: Ike lost the game every single time they played!
A:
Little brother, Ike