JJ halo, Super-cool spyling is the first book in the series where we meet the main character, her parents, the spy organization Silggem. JJ is trained in the use of various gadgets and sent on her first mission, where she meets her new friend, Ava. The mission involves an evil stationery brand that intends to take over the world, and the friends must defeat the stationery brand to save the day.
