Controls:
WASD - Movement
Z - Toggle run
Shift - Dash
Ctrl - Sneak
Tab - Spell wheel
1/2/3 - Cycle abilities/items in slots 1/2/3
RMB - Aim spell
LMB - Cast spell/Ability slot 2
Q - Ability slot 1
E - Ability slot 3/Charm/Interact
N - Toggle clothes
(Period) - Forward one seduce scene
(Comma) - Back one seduce scene
P - Pause menu (Why this isn't bound to ESC is beyond me)
F - Spins you? I guess? Not really sure.

Spells/Abilities

Seduce - It's just the scene starter.
Conjure Flameblade - Supposedly summons a blade for you to use but I've never gotten it to do anything.
Rock Barrier - Supposedly summons a rock barrier but...
Tentacle Trap - Makes a trap, just don't try using this in the middle of combat.
Teleport - Teleports you a moderate distance; arguably your only useful spell.
Order Attack - Point at an enemy and your charmed posse will attack. Usually.
Orbiting Discs - Ability. Does damage in a small AOE around you for about 1s.
Blast - Ability. Blows up the area in front of you. Requires doing a seduce scene to cast once.

Tips

Quickly teleporting up to an enemy and circlestrafing behind them is generally easier than trying to sneak up to them.
Looks like there's an unintentional soft cap on the number of enemies you can have charmed. When you exceed the cap it just uncharms and then breaks the AI of a random already charmed enemy.
Break out of the futa demon's animation by pressing Q or E (not 100% sure, I just kinda mashed keys)