Episode 5 (Algebra Project)

The fifth episode of Algebra Project, is Natural Numeral who found the secrets at the phase of Math-chan.

Summary
''There's Natural Numeral, the companion of Yume. She is the secret finder at the phases of Math-chan and it's been revealed by herself. What's the program about the secrets?''

Trivia

 * Natural Numeral is at the role in this episode.
 * Her companion is Yume Hanayama, or simply known as Yume for the short name of herself.