Suwa Squad and Arafune Squad

Short Summary
''Osamu works tirelessly to find a strategy to defeat Suwa Unit and Arafune Unit, but can't find an answer. After a day relaxing around town, Osamu, Yūma and Chika come to a realization.''

Characters in order of appearance
Characters in italic are only seen briefly and have yet to make a proper appearance.

Adapted From

 * Chapter 87

Differences Between the Anime and Manga

 * Osamu, Chika and Yūma don't travel around the city in the manga.