Air Gear Vol. 21 (Kodansha, 2016)

Ikki and his teammates are undergoing an intensive summer training camp in a secluded mountain town to prepare for their battle against Sora. But the town legends speak of a creepy temple submerged in the middle of the lake, and a dragon god that brings storms and floods. Meanwhile, foreign military forces in league with Genesis are sneaking into town, and Agito will be faced with his strongest test yet…