Black Trigger: Fūjin

Short Summary
''The battle between Jin, Tachikawa, Kazama and Utagawa rages on, as Jin defeats Utagawa. Back in Tamakoma Branch, Shiori proceeds to explain about the Gunner and Shooter triggers to Yūma and Osamu. Meanwhile, Kitora defeats Yoneya and reunites with Jun, while Mitsuru is forced to bailout after protecting Kitora from Tōma's shots, and they're left incapacitated. Arashiyama Unit then puts up a plan to take down Miwa, Izumi and Tōma, with Jun serving as the bait.''

Adapted From

 * Chapter 28
 * Chapter 29
 * Chapter 30