In order of appearance:
Amu is going to a love shrine, but is unsure who to pray to be with, as so many boys pop into her head. She remembers Nadeshiko said her house was near there, so goes to Nadeshiko's house. Instead, she finds a boy who claims to be Nagihiko, Nadeshiko's twin brother. They go to the shrine together and Amu talks to Nagihiko openly like she would to Nadeshiko. Nagihiko buys a charm for himself and Amu, then returns home, as they have been looking for him. It is revealed that Nadeshiko is actually Nagihiko cross-dressing for dance, where he has to learn to be ladylike to play female roles in dance. Amu is unaware of this, though.