Synopsis: Hikikomori Hakoiri Reijyou no Kekkon

Look! The most powerful captive lady has arrived! The kingdom throws a grand ball for seventeen-year-old aristocrats, filled with all the luxury and extravagance you'd anticipate. In a room corner rests a mysterious wooden box, out of sync with the celebration. The kingdom's second prince, Syphon, tiptoes towards it, intrigued by its unknown existence. He inspects the container closely when he suddenly hears a voice echo from inside! "Hello...May I be of assistance?" This sparks off a love tale between a timid, physically bound noblewoman and an energetic, curious prince!