Toshio Iizuka

The season is fall and the city of Neo-Venezia is covered in fallen leaves. Something is bothering Anya, who works at Orange Planet. Her senior colleagues Alice and Athena haven't seen each other due to their busy schedules, which is making Athena feel sad. But for some reason, Alice seems to be avoiding her altogether. With her friends Ai and Azusa's help, Anya tries to find a definitive way for Alice and Athena to get together. But during this time, Anya learns of a situation that only she can see because of where she stands.

The three brothers discover that the human experiment banned after destroying the "Orochi", is still going on to secretly revive the evil snake. They also find out that some ex-members of the Yamainu (the Japanese military unit formed to kill the snake) are behind this conspiracy. The brothers fight together again in a battle against the military.

Fuma ninja clan is a secret ninja tribe that is waiting for the "Orochi" (gigantic snake) to resurrect for generations. Shirasu and his twin brother Ichiu grew up in this viscous environment and this tells how they become the leaders of the clan.

One year has passed after the great battle against the Orochi (gigantic snake). Tenka Kumo had been paralyzed from the final battle and he took part of the government’s human experiment before the battle. Tenka withdrew himself from society but his younger brothers Soramaru and Chutaro find out the secret past about their older brother.

Подобно миру взрослых, мир детей не терпит различий, выделяющих кого-то на фоне других, коих принято считать «нормальными». Этот мир жесток, поскольку его обитатели, в отличие от обитателей мира взрослых, еще не успели научиться скрывать мерзкие мысли за напускной улыбкой. Многие вещи им непонятны, более того — неведомы. Дети прямолинейны. И поэтому очень жестоки. Однако все дети когда-нибудь вырастают. И оглядываясь назад, во времена школьной рутины, некоторым из них становится стыдно за свою юность.