Tanmoku Ki returns to his family home for the first time since making a pact with his new spirit shadow, You Keika. However, aside from Tanmoku's grandmother, who welcomes Keika with happy tears, the welcoming mood in the sprawling mansion is noticeably stiff. Keika learns that there is a complicated relationship amoung the members of the Tanmoku family and even their retainers. Meanwhile, a mysterious man and woman appear and corner Keika. What on earth could their goal be?
Even if you didn't exist,
the world wouldn't change!
!ما كان العالم ليتغير حتى لو لم تكن موجودًا
Auch ohne dich wäre
die Welt keine andere!
El mundo seguiría igual
sin tu existencia.
El mundo seguiría igual sin ti.
Le monde peut tourner sans toi !
Anche se non esistessi, il mondo non cambierebbe!
Mesmo se você não existisse,
 o mundo não mudaria!