The text you're referring to covers the game , specifically its first DLC titled YARISUTEMESUBUTA ～PUMP & DUMP～
YARISUTEMESUBUTA ~ PUMP & DUMP (released on Steam as ) is a monster-collection RPG that features adult content and tactical combat. The game focuses on capturing "Yarimons" and challenging various trainers to win a tournament. DLC Overview eng yarisutemesubuta pump dump dlc unce
: Kaito flooded the game’s marketplace with useless "Yari" (spear) items, driving the price into the millions of gold. The text you're referring to covers the game