Hyouka Wang has arrived at the shared house Familia—a raunchy, dangerous battleground of love where plots, schemes, and seduction lurk around every corner threatening to trap the world's most elite spies. She’s a cosplaying beauty, social media superstar...and a spy. She gets right to work, attempting to ensnare Hayato by dressing up as his beloved childhood heroine. But Seraphy won’t go down without a fight and enters the fray with a cosplay of her own! This kicks off a shared-house Halloween cosplay competition, and Hayato has to take their measurements. With such sweet temptations laid before him, will he be able to maintain his composure...?