Dummy Marota-chan

Dummy Marota-chan (ダミー麻呂太ちゃん Damī marota-chan) is a secret boss in LustGrimm Again. She can only be found by talking to a cow in Outset House repeatedly until it offers to lead you to a secret area if you know a code (MA20). Once there, you must talk to the cow next to Dummy Marota-chan and pick the "Yes" option.

Profile
''An alter ego of the VTuber [Marota-chan] from another world, created by a mysterious pen-tab. However, this alter ego has gone out of control for the sake of fans!?   * She is not related to any real life person.''

Quote when using Observe: (Monetization, yippee♪ It's a step closer to my dream of a big boob palace♥)

Strategy
At the start of the battle, you are given the option of throwing spacha at Dummy Marota-chan (i.e. giving her money). Doing so weakens her proportionately to the amount you give. If you take this option, the minimum amount you must give is 100 muni.

Dummy Marota-chan also asks for spacha as her temptation. You can still avoid this temptation without losing muni by picking "Throw spacha" and then selecting an amount less than 100 muni.

Dummy Marota-chan is an extremely powerful boss even after being weakened, with strong attacks and more Vigor than even Rotkappchen. While she is weak to Chest attacks, it may be more efficient to use the higher-tier Ass Lick and Pussy Lick skills, since these lower her Skill and Dexterity to reduce her damage output. Bringing lots of healing items is also recommended to keep yourself alive. Even with these tactics, it's possible you'll end up ejaculating at least once during the battle; you'll just need to be persistent and not give up.

Dummy Marota-chan can drain a level with High Level Drain (also fully restoring her own Vigor). Make sure to succeed at the Push Action to avoid this.

H-scenes
Dummy Marota-chan has one H-scene in which she gives Magrut a titjob.

Trivia

 * Dummy Marota-chan is based on the VTuber (virtual YouTuber) Marota-chan, who is also one of the game's artists. This is referenced by her name, her dialogue, the dialogue of other NPCs, her battle mechanics and her profile, though her profile also also denies any relationship to any real life person.
 * Dummy Marota-chan has a recurring association with the number 63. This may be a reference to 62studio's association with the numbers 6 and 2.