Invisible Assailants

Short Summary
While Osamu and Yūma tries to negotiate with Xeno for Chika's release, they were attacked by an unknown assailant.

Characters in order of appearance
Characters in italic are only seen briefly and have yet to make a proper appearance.
 * Kirie Konami
 * Yōtarō Rindō
 * Raijinmaru
 * Kyōsuke Karasuma
 * Xeno
 * Yūma Kuga
 * Osamu Mikumo
 * Chika Amatori
 * Lilith
 * Shiori Usami
 * Giev
 * Charon
 * Yūichi Jin (Present then Flashback)
 * Masamune Kido
 * Kazama Squad (Mentioned)

Triggers in order of appearance

 * Ergates' Trigger (Xeno)
 * Kogetsu (Kyōsuke Karasuma)
 * Trion Cube (Kyōsuke Karasuma)
 * Asteroid/Assault Rifle (Kyōsuke Karasuma)
 * Meteor (Kirie Konami
 * Axe (Kirie Konami)
 * Viper/Assault Rifle (Kyōsuke Karasuma)
 * Raygust/Shield Mode (Osamu Mikumo)
 * Thruster (Osamu Mikumo)
 * Raygust/Blade Mode (Osamu Mikumo)