Brother and younger sister-in-law live in the house which parents are often away from. Yuki who is the younger sister is secretly yearning for Kenji who is the elder brother. However, one girl came to show up from the closet in Kenji's room after a certain night. Moreover, her body is transparent, and she looks like the ghost. Her name is Hiyori. She is a friend in their childhood. They are pleased with reunion though Kenji and Yuki are perplexed with the way of Hiyori's strange appearance. However, Yuki gets the mind shaken as Kenji and Hiyori become intimate, and the pain in her mind in the childhood is recalled. At the childhood, Yuki was going to pass the light blue toy ring which Kenji had had to Hiyori in exchange for Hiyori's yoyo. However, because Hiyori became sick, and had moved, the promise was not an accomplishment. Their events in the childhood seem to be related to Hiyori's showing up in front of them. A painful love story of Kenji and two girls progresses.

Lufy, discovered floating lifeless in space, is brought on board a Solnoid cruiser and given another chance at life. Once the hardened warrior, she is shown events that shake her faith (one's own death seems to have a way of changing one's philosophy) and lessening her power as a fighter just as that power is most needed!

Hakuo Gakuin is on the verge of closing down due to students transferring to rival school Seishikan after mysterious injuries happening to students who refuse to transfer. To protect the school and its students they hire Kojiro, a member of the Fuma clan of ninjas. After finding out that Seishikan has enlisted the help of the Yasha ninja clan, who had been rivals with the Fuma for generations, Kojiro gains the help of his fellow Fuma ninjas. Even though they are hired to protect the schools, the two rival clans vow to destroy each other once and for all so that only one clan remains.

Based on Ekaterina Kurae's chapter 16 from the manga, and episode 10.5 of the anime.