Okoto Arakawa is a gentle giant, excluded from his classmates because of his big stature and overwhelming figure. With the help of his childhood best friend, Naomi Yamauchi, he strove to fix this problem and make himself 'normal'. However, one day he met a girl, Miku Masumi, who revealed the world that was right in front of him the whole time... With her and Naomi's help, he was able to unlock his true 'potential', and fight a threat that has been looming over them for quite some time... Having this newfound power, he strives to protect his new friends, and save them! Can he, do it?