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...
Don't forget, if you leak the 
secret of my birth date to anyone,
،لا تنسَ، إن فشيتَ بسرّ تاريخ ميلادي لأيّ أحد
Vergiss nicht, wenn du jemanden
den Geburtstag verrätst,
No lo olvides, si le cuentas
mi fecha de nacimiento a otra persona,
No lo olvides, si le cuentas
mi fecha de nacimiento a otra persona,
N’oublie pas,
si tu révèles ma date de naissance,
Non dimenticare che se confiderai
a qualcuno la mia data di nascita
Não se esqueça, se revelar o segredo da
 minha data de nascimento para alguém,