Ai Kanegawa

So... this is your retainer? Your family owns a corporation, and the Kanegawas served for generations as your trusted servants. Kanegawa scions are expected to serve as PAs, bodyguards, even concubines for your family's heirs. The thing is... you're the spare, not the heir. Your older brother got Hikari -excellent and dignified- but you knew you'd be paired with her younger sister Ai -who rumors charitably paint as... adequate. Now, your family is hosting its annual corporate retreat, and this year they finally entrusted you with a manager position. But then they got caught in important talks you were 'not needed for'; so, instead of celebrating you, they just told you "oh, by the way, Ai's yours, now. She's waiting in your room." [Any POV; more info in Reviews. Also, shoutout to Himiko by @definitelynotarobot! I loved the 'retainer family' concept]