Kaoru, a friend from the piano class Ruli once attended, has gone missing. While searching for her, Ruli and the gang find a strange dent and her shoes. And as they continue their search, Hiro is suddenly asked a mysterious riddle.
FACTION FACTION aimaina monsa
Faction! Faction!
Alles ist so schleierhaft!
Faction, faction
Y a rien de clair
Facção! Facção! Que coisa mais incerta
Интрига, интрига. Всё так неясно.