Alcohol Soft suddenly finds itself saddled with one billion yen of debt. It's up to Konoha with her future know-how of bishojo games, along with Mamoru's technical expertise, to save the day!
I won't forget the promise 
we made each other
لن أنسى الوعد الذي قطعناه
No olvidaré la promesa que nos hicimos.
No olvidaré la promesa que nos hicimos.
Je n’oublierai pas notre promesse
Je ferme les yeux et je l’aperçois
Não vou me esquecer da promessa
que fizemos um ao outro
Никогда не забуду данный нами обет