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?
Who are you calling a monkey? 
I'm the spirit shadow!
من الذي تنعته بالقرد؟
!أنا ظلّ روحيّ
Wen nennt ihr hier Affe?
Ich bin der Schattengeist!
¿A quién llaman mono?
¡Soy una sombra espiritual!
¿A quién llamáis mono?
¡Soy una sombra espiritual!
Je suis un reflet spirituel,
pas un singe !
Chi hai appena definito  "scimmia"?!
 Sono l'ombra spiritica!
Quem é o macaco? Eu sou
 uma sombra espiritual!