Yuu Enji's conviction in the malevolence of adults stems from his father's abusive behavior. However, Yuu found solace in his group home, where he formed a bond with fellow orphans that became his family.
As Yuu approaches high school graduation, his subpar academic performances push him to pursue the job market. His aim is to gather enough funds to buy his beloved orphanage. Nonetheless, before he could put his strategy into motion, a tragic event rocks the world. Every adult on earth undergoes a transformation that turns them into monstrous chickens and roosters. Their primary agenda is to feast on every child in sight.
Yuu treasures his siblings more than anything. However, with colossal birds that harbor a thirst for young blood, will he navigate the massacre and keep his family unscathed?
