After learning about the “Seven Mysteries” at the Ninja Academy, Himawari and several of her classmates decide to go investigate at night. Kae is among the participants, so Kawaki has no choice but to go along. But he learns that Kae does not believe in the Seven Wonders and is trying to create a fake phenomenon for the students who are looking forward to the expedition. Seeing Kae’s eagerness and excitement, Kawaki decides to help her until the end, but then something mysterious and unexpected occurs.
Un soir, une petite bande réunie par Himawari pénètre dans l'Académie pour y observer des phénomènes étranges. D'emblée, Kae intrigue Kawaki en prenant un chemin à part.
Himawari organiza sua turma da Academia para que possam investigar os aterrorizantes sete mistérios da Academia... Será que eles terão coragem para ir em frente?
Himawari organiza sua turma da Academia para que possam investigar os aterrorizantes sete mistérios da Academia... Será que eles terão coragem para ir em frente?
In Himawaris Klasse geht das Gerücht über die Sieben Mysterien der Akademie um. Sie formieren einen Expeditionstrupp, um das Geheimnis zu lüften.
Himawari y sus compañeros de clase quieren recorrer la academia en plena noche para explorar los siete terroríficos misterios de las leyendas, pero Kae tiene sus propios planes.