Light Novel Volume SS 01: Bride Royal

Bride Royal is the title of the first short stories volume of the Spy Classroom light novel.

Synopsis
Witness the top secret of spying! A gem of a short story collection is finally here!

In this short story, you'll learn that you're married to someone from the Tomoshobi. And while his fiancée remains a mystery, a battle for the bride breaks out among the members of "Tomoshobi"...? Witness the daily life of the girls, which is not depicted in the main story!