ข้อมูลอนิเมะSpiral: Bond of Reasoning

What are the Blade Children? A question that has plagued Ayumu's mind for two years. But now Ayumu has been accused of attempted murder. Who really pushed the mysterious Sayoko off the ledge? Who is Sonobe and why is he determined to make Ayumu look like the bad guy?

After Sonobe is mysteriously attacked a murder takes place in Sayoko's home. Leading us further into the questions: What are the Blade Children and is Sayoko really a Blade Child?

Eyes Rutherford has skyrocketed to the pinnacle of success, but he holds a dark secret one that could take him down with it. What does Eyes know, and how does he know Kiyotaka?

Sonobe has just been murdered! Now Ayumu and Hiyono are determined to dig up some dirt on this crime. While searching for the killer, they meet the ever cocky Kousuke Asazuki. There's more to this guy than Ayumu knows: Kousuke is a Blade Child! And if things didn't seem weirder, he also knows Kiyotaka!

The mystery of the Blade Children continues. Mr. Imazato gives Ayumu a chance to learn about the Blade Children, but before he can reveal anything, a mysterious person takes away his life. The Blade Children refuse to let anyone stand in the way of their mysterious destiny. The only person that is the key to their salvation is Ayumu.

The mystery of Imazato's murder goes underway. However, there's a hidden danger as Hiyono becomes the next target of the Blade Children. Can Ayumu protect Hiyono from certain death? All this and more.

Ayumu has been issued yet another challenge by the Blade Children, a challenge that could most definitely be Ayumu's greatest and deadliest one yet. Meanwhile at the police station Madoka tries to get into Kiyotaka's file and learns that there's a chance that Adachi, Sonobe, and Imazato possibly have something to do with Kiyotaka's mysterious disappearance. Who were these three really, and can Ayumu and Hiyono actually defeat the Blade Children once and for all?

After leaving Hiyono in the hands of the Blade Children, Ayumu begins to wonder if all these dangerous games really are worth the chance of Hiyono getting killed. Meanwhile, Madoka remembers her promise to Kiyotaka: Always be there for Ayumu no matter what. After which, Ayumu returns to the hospital for the chance to save Hiyono. What will Ayumu suggest?

After losing to Rio last time, Ayumu makes a comeback. Since each side has something the other wants, Hiyono and the tape, another game is devised. This time by none other than Ayumu. After the game begins, Rio rushes off to catch up to Hiyono while Kousuke heads off to intercept the tape. When Rio pushes Hiyono onto a train, it seems like certain death for Ayumu. With a bomb around his neck and Hiyono on a moving train, however will Ayumu get out of this alive?!