Fess/Lust Grimm

Fess is a recurring boss in Lust Grimm. She is fought in the first battle of the game (which also acts as a tutorial), then is encountered much later in Howling Castle.

Profile
''One of the three Succubus Sisters created for this world. She has a bright and cheerful personality and enjoys watching horror films with her older sister, Ideal.''

First Battle
Puff-Puff: Chest element

Kiss of Corruption: Mouth element, inflicts Sensitivity

Longing Embrace: triggers Hold

Second Battle
Demon's Kiss: Mouth element, inflicts Ecstasy, increases Lust

Demon's Touch: Hand element

Demon's Meal: Chest element, inflicts Throbbing status

Demonic Footjob: Foot element

Demon Press: Ass element

Demon Grind: Pussy element

Titfuck Drain!: Chest element, drains 2 levels

Strategy
In her first battle, Fess isn't serious and it isn't necessary to win, as losing simply results in a different scene. This battle, being the first in the game, serves as a tutorial. Use Breast Squeeze to deal damage. If you want to speed things up, you can use Undress! and then the Thrust skills to do more damage. If you get caught, use Struggle as the game instructs you. It's harder to lose this battle than to win it.

Her second battle is more difficult. Prior to this battle, it's a good idea to obtain the Fess Piece (it's in the gold chest in Awilda Cave 3F) as it automatically lowers Fess's stats and makes her easier. This battle can be troublesome as Fess can use Titfuck Drain to drain your levels. Defeat her using Chest attacks as soon as possible.