Harem Rush! Impish Fantasy is a 2D animated adventure RPG from MenZ Studio, created with the Others engine and formerly titled Isekai Lost in Harem. It takes place in Estalia, a female-only world kept safe by a seal against demons. When that seal shatters, demon forces invade and bring people under the demon lord’s dark power. You play a reincarnated hero, prophesied to arrive with a holy lance, and must defeat the demon lord while rescuing Estalia’s inhabitants. Combat, monster girls, and fantasy themes drive the play.
The current build is v1.06, dated December 12, 2025, and development is ongoing. It runs on Windows and offers English and Japanese text, with no censorship. The update adds mouse movement for map stage X-3, more parry guidance in stage 0-1, and adjusted MP regeneration that lowers gains when WIT exceeds 50 and 100. It also fixes enemies sometimes failing to respawn in Survival mode, corrects invincibility after Cannon Punch, the fourth fist skill, and removes Firewall particle effects.
Developer's description
The story of the game is about the world name "Estalia", the world populated only by females.
This world is peaceful, thanks to the seal that keeps demons away.
But one day, the seal is broken and demons start to invade the land.
People get attacked and get controlled by the dark power of the demon lord.
"You" are the hero who reincarnates into this world.
A prophesized hero wielding a magic lance destined to appear before the world at its time of need.
Your main mission is to defeat the demon lord and rescue the people of Estalia with your holy lance!
Formerly known as Isekai Lost in Harem
v1.06
[ Update ]
Player can move in map stage (X-3) by mouse, click at the direction icon to move.
Add more parry tutorial in stage 0-1
Balance MP Regen : The amount of MP Regen increase is lower when WIT is higher than 50 and 100
[ Bugs Fixed ]
Sometime enemies stop respawn in Survival mode
Enemies become invincicle after use Cannon Punch (4th Fist skill)
Remove Firewall particle effect
v1.05
- Remove Fire Wall particle effects
- Fixed : enemies become invincible after player use Cannon Punch (Fist 4th skill)
- Fixed : enmies sometime stop respawn in Survival mode
v1.04
Add Japanese language
Adjust windows screen option for 1920x1080p to 1600x900
Challenge Mode : enemy's LV increase equal to player's LV if your LV is higher than default
v0.61
N/A
v0.51
Add 5th chapter : New 4 stages, 4 enemies
Add H animation for 4th chapter enemies : warrior, kungfu, demon assassin and twin oni
--- H animation of new enemies use other girl animation as placeholder. ---
< Boss Fight >
Add parry defense to bosses, players have to parry boss twice to counter attack. But when boss get attacked by counter attack, boss will stagger same as normal enemies. This will open a chance to follow up with normal attacks or skills. Successful parry also reduce boss's stamina. I think this will add more challenge and make boss fight little different from normal enemies.
< Status Balance >
Endurance (EDR) : +1 stamina
(+0.5 after EDR > 30)
, +1 PDEF,
+0.35 PATK
WIT : + Mana Regen, +1 MDEF,
+1 MATK
Reduce HP per LV up from +5 to +3
Stamina use for attack increase 25% but increase stamina regen speed
Increase damage dealt of greatsword normal attacks
Increase damage dealt of all skills
Energy Ball (wand skill) - change from holding left-mouse to use to press "A"
Mana Mastery (passive) - holding left-mouse to concentrate faster MP regen (+20% / 35% / 50%)
Lower EXP need to LV up for each LV and more EXP earn after cleared stage
< Enemies >
Enemies in each chapter increase extra ATK and HP to balance with player's new equipment
Kungfu girl can block attack
v0.21
- Add 2nd Chapter
- 4 new enemies
- 6 new H scenes
- 10 new challenge stages (unlock 5 stages after clear each chapter)
- 4 new magic spells
- New equipment
Adjustment
- Add Full screen mode in option
- Map stage, decrease encounter rate (every 20-25 moves to 28-35 moves)
- Map stage, player can escape from battle by holding right click on [Escape] icon until gauge full.
- When enemy attacking, the 1st hitbox at the moment will have symbol "
( 1 )
". So players easier to notice which enemy attack should block/parry first when more than one enemy attack nearly the same time
- Shield girl no longer block while attacking
Notice!
- 2nd Chapter has no story. The writer is still busy. I will work on the story later when the writer available.
- No new H scene in stage 2-3 (2nd chapter, map stage) because I want to concentrate on main game first. Will work on it later.
v0.11
Player reviews
Player rating4.0 / 5 · 11 ratings
Written reviews11 · avg 4.3★
Positive (4–5★)100%
Latest review2025-10-26
What players say
Most reviewers rate it highly, praising gameplay and animations despite bugs and unfinished polish.
5★3
4★8
3★0
2★0
1★0
Players like
Intuitive action combat with engaging enemy patterns.
Animated sex scenes and appealing character art.
RPG progression with weapons, skills, and item builds.
Common complaints
Bugs, crashes, and rough polish issues.
Poor UX and missing control remapping.
Late-game balance and grindy encounters.
Best for players who enjoy action combat, RPG builds, and animated adult scenes.
Summarised from 11 written player reviews.
angelmongler1232025-10-26★★★★★
Amazing game. Fun gameplay and tons of animated h-scenes. The game does have some rough edges, but it's still among the best action h-games I've played. The game is also not hard and not grindy at all. I have no…
Som-one2025-10-21★★★★★
v1.00 "Harem Rush" Solid art, solid gameplay (JSK: The Big Game), some fun challenge levels. Definitely recommend. On the bad side, the dev grew bored (a year ago) and didn't really finish the game. It's janky here and there (most…
TheeSonus2025-08-02★★★★★
I would have some sort of hook here but I'm creatively bankrupt and can't come up with one. This review is kind of scatterbrained, much as I myself am at the moment, so be aware that I'll be jumping around…