When Yuuya reunites with the girl he saved back at the convenience store, she invites him to attend the prestigious Ousei Academy. Yuuya isn’t sure that he’s worthy of attending a school full of geniuses, but he’s persuaded to try it for just one day.
In the house that my grandpa left me,
،في البيت الذي ترك لي جدي
Ich habe in dem Haus, das ich von meinem
 Opa geerbt habe, ein Geheimzimmer entdeckt.
J’ai découvert une pièce cachée
dans la maison de mon grand-père.
जो घर मेरे दादा जी मेरे नाम छोड़ कर गए थे,
Ho trovato una stanza segreta nella casa
Na casa que meu avô deixou para mim,
В доме, который я унаследовал от деда,