Being a Salesperson is a roleplaying subclass in Elder Tale. One of its variants is the Saleslady subclass (lit. House Mannequin (ハウスマヌカン?), though it means the same thing).

Log Horizon: New Adventure Land

The Saleslady subclass is one of the subclasses that can be acquired in the mobile game. It raises the player character's ATK for the next turn and has a 12-turn cooldown.