In Another World with My Smartphone, Vol. 16 (Manga)

As Touya continues to expand his kingdom, he finds himself in need of additional staff for the newly renovated Silver Moon. He decides to visit Reflet to follow up on a lead, but as soon as he arrives, a Wyvern swoops in to attack the town! Touya quickly fells the beast, but upon examining its remains, he discovers what appears to be a mind-controlling needle in the Wyvern's head. Who could be behind such treachery, and what do they hope to achieve by launching an assault on Reflet?