With the battle against the white-masked man settled, they returned to their bawdy daily life. Basara wakes up with his hand groping Maria's butt, he runs into a naked Mio when he enters the bathroom, and Yuki sneaks into the bath with him. The master-servant pact lying at the heart of everything. Accoring to Takigawa, his classmate and the white-masked man, the pact between Basara and Mio holds another secret. Meanwhile, Basara's childhood friend Yuki invites him out on a date...
I won't regret it.  That's my responsibility as her
 step brother, her family...  and I believe that.
Ich werde es nicht bereuen.
Das liegt in meiner Verantwortung als ihr Stiefbruder,
ihrer Familie ... und ich glaube das.
No me arrepentiré. Es mi deber como su 
hermanastro y familiar.... Estoy seguro.
No me arrepentiré. Es mi deber como 
su hermanastro y familiar.... Estoy seguro.
Je n’ai pas de regret.
Parce que je crois que c’est
mon devoir en tant que demi-frère
Non me ne pentirò. È mia responsabilità in qualità
 di fratello adottivo, la sua famiglia. E ci credo davvero.
Eu não irei me arrepender. É minha responsabilidade
como irmão dela, a família dela...
eu acredito nisso.
Я об этом не пожалею. Потому что верю, что это и есть мой долг сводного брата, её семьи