In , the core gameplay revolves around exploring procedurally generated dungeons with a party of up to three active "Friend" monster girls and six in reserve. Recruiting these allies is essential, as the hero's level resets upon exiting a dungeon while the monster girls retain their progress. Core Recruitment Mechanics
According to contributors on the Steam Community, here are specific conditions for various monsters: Monster(s) Recruitment Condition Let them hit you without hitting back. Poison Slime Become poisoned by them. Were Wolf / Fenrir Fight them until both your HP and theirs are low. Bee / Paraly Bee Pay a hire fee (e.g., 2,000 to 20,000 gold). Trainee Elf Give her "Big Bread". Harpy / Mayu Sibayu Give them any ring. Medusa Give her a "soft" item while she asks for it. Aery / Sylph Maximize her heart level.
If a monster has fewer than three hearts, you can increase her level by giving her gifts.
: Providing a specific item from your main inventory (not from a pouch).
Guide :: [ENG][WIP] How to friend everyone - Steam Community
: Most monsters require at least three hearts before they will consider joining you.
If a monster has only one grey heart, she cannot be recruited on that specific floor. Monsters that require a specific item gift sometimes only
: Performing actions like letting them hit you without retaliating, surviving specific status effects, or lowering their HP to a certain threshold.