Hatter/LustGrimm Again

The Hatter (帽子屋さん Bōshiyasan) is a bonus boss in LustGrimm Again, one who also serves as a shop, a source of information and a way to access the game's genocide route.

To fight her, the player must open the treasure chest near her. This requires inputting the code 38100, found in the Succubus House of Succubus in Wonderland.

Profile
''A hat-wearing, money-loving succubus who runs her own shop. Despite her name, she typically sells things other than hats. She usually acts only for the sake of profit. Also, she originally didn’t exist in this world…?''

Quote when using Observe: (Fufu, you're also using that 『skill』. It reminds me of that boy from my world.)

Strategy
The Hatter has no weakness, so any kind of attack is equally effective at dealing damage. That said, avoid using Nipple Suck or Nipple Suck+ as she will retaliate with Nursing Counter.

The Hatter resists most status ailments, though the stat debuffs inflicted by Mouth skills are exceptions to this.

H-scenes
The Hatter has four H-scenes for when the player loses to her: giving Magrut a titjob for the first time, giving Magrut a titjob again, giving Magrut a breastfeeding handjob for the first time, and giving Magrut a breastfeeding handjob again.