Light Novel Other Size Engagement of Hikikomori Boxed daughter (Boxed daughter series)

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

"Box?" "It's a box, isn't it?" "What is it, that box?" Adult Society -- A party sponsored by the royal family to be invited in the summer when the aristocrats reach the age of 17. A mysterious wooden box placed in a corner of a gorgeous venue. The second prince approached with a curious face and said, "No, I can't help worrying about it. What is this?" When he patted on the surface of the box, "Oh, um. What can I do for you?" A pretty voice! This is the story of a truly authentic "boxed princess" and the prince's strange love.