MRXD-083 Hinata Mio ‘My Girlfriend’s Wife is a Bewildering Domme Wife.2’ Sports Cosplay MARX Marukusu Brothers

I'd say I'm a bit of a masochist. My girlfriend and I met through the tennis club at the same university and have been dating ever since. Her older sister, who's also in her fourth year at the same university, belongs to the law department—elegant, intelligent, and an excellent cook. I always thought she was such a refined and admirable woman. But the other day when I visited my girlfriend's house, her sister suddenly whispered into my ear: 'Hey… hey, Masochist-kun… I want you to call me "Master"…'