Beyond the Boundary: Season 0 - 14 Episode s
0x1 - Idol Trial! - No Matter How Lost I Feel, I Will Judge You #1
November 18, 2013
0x2 - Idol Trial! - No Matter How Lost I Feel, I Will Judge You #2
December 2, 2013
0x3 - Idol Trial! - No Matter How Lost I Feel, I Will Judge You #3
December 16, 2013
0x4 - Idol Trial! - No Matter How Lost I Feel, I Will Judge You #4
July 2, 2014
0x5 - Idol Trial! - No Matter How Lost I Feel, I Will Judge You #5
July 2, 2014
0x6 - Daybreak
July 2, 2014
This episode takes place two years prior to the anime series and begins when Hiroomi receives a request for a job from his older sister Izumi: to subdue the invulnerable half-yōmu Akihito. Hiroomi's younger sister, Mitsuki, encounters a dark silhouette in the street on her way to follow Akihito and her brother.
0x7 - Mini Theater #1 - I Love My Brother!
January 8, 2014
0x8 - Mini Theater #2 - Mirai's Bright Get-Rich-Quick Plan
February 5, 2014
0x9 - Mini Theater #3 - Women in Their 20's, the Perfect Age for Falling in Love
March 5, 2014
0x10 - Mini Theater #4 - The Road to Becoming an Idol
April 2, 2014
0x11 - Mini Theater #5 - Slumber Party
May 14, 2014
0x12 - Mini Theater #6 - Let's Have a Training Camp!
June 4, 2014
0x13 - Mini Theater #7 - A Letter from Mom
July 2, 2014
0x14 - Yakusoku no Kizuna
March 14, 2015
Music video Yakusoku no Kizuna from Kyoukai no Kanata Movie: I'll Be Here - Kako-hen Blu-ray/DVD.