One morning, at the end of one of their usual arguments, You Keika learns about the life and death relationship between a Youmeishi and their spirit shadow, as well as the weaknesses of this from Tanmoku Ki. Along the way, Keika learns about the Tanmoku family's treasured sword (the Rakugetsu sword) as it is being taken to the family mausoleum in preparation for the pledging ceremony. He then finds himself under attack by Shito Ritsu who bears a strong grudge against Tanmoku Ki. When he soul is about to be broken apart Keika reaches out for the sacred sword...
When I wielded that sword, 
it was like I suddenly changed.
.عندما لحتُ بذلك السيف
وكأني تغيرت فجأةً
Als ich das Schwert berührte,
habe ich mich plötzlich verändert.
Me comporté extraño
cuando tomé esa espada.
Estuve muy raro
cuando empuñé esa espada.
Je n’étais plus moi-même
quand j’ai pris l’épée.
Quando ho impugnato quella spada
è come se fossi cambiato all'improvviso.
Quando eu segurei aquela espada foi 
como se eu tivesse mudado de repente.