There is a tower that summons chosen people called "Regulars" with the promise of granting their deepest desires. Whether it be wealth, fame, authority, or something that surpasses them all—everything awaits those who reach the top.
Twenty-Fifth Bam is a boy who had only known a dark cave, a dirty cloth, and an unreachable light his entire life. So when a girl named Rachel came to him through the light, his entire world changed. Becoming close friends with Rachel, he learned various things about the outside world from her. But when Rachel says she must leave him to climb the Tower, his world shatters around him. Vowing to follow after her no matter what it takes, he sets his sight on the tower, and a miracle occurs.
Thus begins the journey of Bam, a young boy who was not chosen by the Tower but opened its gates by himself. They call his kind "Irregulars"—beings that have shaken the very foundation of the Tower each time they set foot inside it.
[Written by MAL Rewrite]+ More
More Seasons
Characters & Voice Actors

Rachel
Main
Anaak's Mother
Supporting
Black March
Supporting
Blitz, Quant
Supporting
Chungchung
Supporting
Dede, Kancho
Supporting
Edroch, Evan
SupportingRecommended for you
Megami Paradise
OVA
30m
Aguu: Genius Dolls
TV
23m
Angel's Feather
OVA
30m
Blame! Prologue
OVA
4m
Capricorn
OVA
47m
Akai Hayate
OVA
27m
Dream Dimension Gentleman
OVA
49m
Nanatsu no Bitoku Specials
Special
5m
Girl from Phantasia
OVA
28m
Ozmafia!!
TV
5m
Inferno Cop: Fact Files
ONA
24m
Ariel Visual
OVA
28m
AFTERLOST
TV
23m
Violence Jack: Hell's Wind
OVA
54m
Arabian Nights: Sinbad's Adventures
Movie
81m
Cheating Craft
TV
12m