Wanting to improve their skills and become stronger , the Achiga girls ask to train with them .
Satomi brings the Achiga girls to her grandmother 's house where they meet Tsuruga 's Yumi Kajiki .
Wanting to improve girls ' skills and become stronger , the Achiga girls ask to train with Achiga .
Satomi brings the Achiga girls to her grandmother 's house where they meet Tsuruga 's Yumi Kajiki .