(W/A/CA) Touya Mikanagi Gareki comes face-to-face with the silver-haired Yogi in the darkened halls of the ship. Despite his attempts to get to the bottom of Silver Yogi's enigmatic words and to discover the truth behind this personality, Gareki is instead drawn into a dangerous game... For readers ages 16 years and up.

(W/A/CA) Touya Mikanagi Yogi reclaims control over his body and returns to Circus's ship, along with his long-lost sister Mieux-Marie, but many difficult choices await the two of them. And Karoku's memories of the time he and his mother spent in the Rainbow Forest after fleeing their hometown of Karasuna provide insight into Nai's origins...

(W/A/CA) Touya Mikanagi With Karoku's past explained, the origin of Nai is revealed at last! But the mysteries surrounding Nai have only deepened. Is the enigmatic voice guiding Nai actually Karoku's father Nisu? Or something? more sinister?

(W/A) Touya Mikanagi Gareki's desperate search for Nai is finally over! But his troubles have only just begun-Nai's fleeting appearance is accompanied by the other Karoku and his behavior is anything but normal. When he vanishes through a mysterious portal after leaving Gareki with a cryptic question, Gareki's burning desire to save his friend pushes him to follow. Meanwhile, Hirato's investigation into Kafka's presence in the Allonga village is interrupted by a strangely familiar face?

(W/A) Touya Mikanagi Kafka's hidden passageway has been found! Circus agents Eva and Hirato attempt to sneak in so they can shut down Kafka operations, once and for all. Meanwhile, Eliska is desperately trying to save Nai from certain death at the hands of Uro-even at the cost of her own life...