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VN Ren'Py [Koikatsu] Due to My New Situation, I Have to Corrupt My Friend's Harem! [v0.61] [Warrior Novels]

Dean

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Developer Name
Warrior Novels
Developer Links
Version
0.61
Latest Update
May 11, 2025
Release Date
May 28, 2023
Language
English
OS
  1. Windows
  2. Linux
  3. MacOS
  4. Android
Other Games
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Overview:
"Due to My New Situation, I Have to Corrupt My Friend's Harem!" or "Friend's Harem Corruption" to make it shorter. This is a story where the MC is often overshadowed by others in the world, being seen as a secondary character, except for his exceptional intellect. The MC befriends Naoki, a widely adored individual known for his charm. Drawing upon his intellect, the MC assists Naoki in accomplishing something remarkable: capturing the hearts of specific girls and getting them engaged with him. However, one day, the appearance of a woman changes everything for both of them, damaging their relationship forever and ushering in a new chapter in their lives. Play as the MC and use different tools and abilities to corrupt Naoki's harem!

This story is essentially a parody of the typical harem trope, with a focus on corruption and netori (MC stealing the girls).​

3dcg, animated, blowjob, cheating, corruption, handjob, harem, male protagonist, mind control, mobile game, netori, school setting, trainer, vaginal sex
Extract and run
v0.61
  • Tokuko's Ending - Part 2
  • I've made some changes to the previous dialogue
v0.60
  • Tokuko's Ending - Part 1
v0.59
  • Endings
    • Ai's Ending - Final Part
  • GUI Update
    • Small adjustment when exiting the game

v0.58
  • Ai's Ending - Part 4

v0.57
  • Ai's Ending - Part 3
  • Tokuko’s neutral ending - Tokuko Scenes
  • I've added an option that lets players skip the prologue at the beginning of the game.
v0.56
  • Ai's Ending - Part 2
v0.55
  • Ai's Ending - Part 1

v0.54
  • Endings
    • Ema's Ending - Final

v0.53
  • Endings
    • Ema's Ending - Part 4
v0.52
  • Endings
    • Ema's Ending - Part 3
    • Adding a bit more content to Tokuko’s neutral ending
    • Updates to the Android version UI

v0.51
  • Endings
    • Ema's Ending - Part 2
v0.50
  • Endings
    • Ema's Ending - Part 1
v0.49
  • Endings
    • Chiaki's Ending - Part 3
    • Adding a bit more content to Tokuko’s neutral ending

v0.48
  • Endings
    • Chiaki's Ending - Part 2
    • Adding a bit more content to Tokuko’s neutral ending

v0.47
Endings
Chiaki's Ending - Part 1

v0.46
Endings
Tokuko’s Neutral Ending

v0.45
Ai/Tokuko's After Corruption Storyline
Tokuko's Recording Scenes
Ai's Recording Scenes
Some UI changes

v0.44
Ai/Tokuko's After-Corruption Storyline

Tokuko's Recording Scenes
Ai's Recording Scenes
UI Updates
Chiaki's Nighttime Mini-Scene

v0.43
Ai's After Corruption Storyline
Ema's Storyline Epilogue
Ai's Recording Scene
Some UI changes

v0.42
Ema's After Corruption Storyline
Ema's Short Scenes
Ema's House Scene

v0.41
Ema's After Corruption Storyline
Ema and Chiaki's Love Hotel Scene¿

v0.40
Ema's After Corruption Storyline
Chiaki's Epilogue / Ema's Jealousy Scene
Cafeteria Scene
Ema and Chiaki's Night at the Academy

v0.38
Naoki’s ‘What if? scene
Tokuko’s Storyline Ending scene
Chiaki’s After Corruption scene

v0.37
Tokuko’s Storyline
Nighttime Chat Scene
Tokuko and Ema’s Scene
Tokuko and Ai’s Scene
Tokuko’s Storyline Ending

v0.35
- Scene Preparations (Setting the Stage for the Beach Scene Ahead)
- Tokuko's Storyline (Beach Scenes)

v0.34
- Ema's Epilogue
- Ema's Repeatable Scenes
- Save/Load GUI Updates
- Tokuko's Storyline
- Classroom Scene
- Tokuko's Apartment Scene

v0.33
- Infirmary Scenes (Ema and Chiaki)
- Night Scene (Ema's Storyline)
- Minor corrections to the script

v0.32
Ema's Storyline
- Ema's Meeting with Chiaki and Ai After Their Corruption
- Ema's Bathroom Scene
- Ema's Conversation with Chiaki at Night

Repeatable Scenes
- Ema's Meeting with Chiaki and Ai After Their Corruption

v0.31
- Chiaki's Repeatable Scenes (Gym and Night Scenes)
- Chiaki's Epilogue
- Ema's Storyline

v0.30
- Ai's Storyline Update
- Chiaki's Gym Scene (NSFW Scenes)
- Chiaki's Night Scene (NSFW Scenes)

v0.29
- Ai's Repeatable Scenes (Night)
- Library Repeatable Scenes (All)
- Ai's Epilogue
- Chiaki's Storyline (Beginning)

v0.28
- New Decision (Night - Ai's Boss Point)
- New Decision (Morning - Big Ai Event and NSFW Animations)

v0.27
- New Decisions in the morning (Ai's storyline)
- New Decisions at night (Ai's storyline)
- Chiaki's NSFW scene
- Ema's NSFW scene
- Tokuko's NSFW scene

v0.26
- After the Long-Long Night Event (Epilogue)
- Update on New Situation (Night Scene)
- Update on Ai's Story (Library Scene)

v0.25
- Ai's Story Update
- Tokuko's Story Update
- Ema's Story Update

v0.24
- Tokuko's Special Night Interactions
- Restaurant Event
- Naoki's House Event
- Chiaki's Story Update (?)

v0.23
- Tokuko's Epilogue (For now)
- Chiaki's Story Update
- Ema's Story Update
- Ai's Story Update

v0.22
- Tokuko's and Someone's Story Update (New Fingering + Handjob + Blowjob Scenes)
- New choices (locations) in the morning

v0.21
- Tokuko's Story Update (Teasing + Licking + Handjob)
- New choices (locations) in the morning

v0.20
- Ai's Story Update (Handjob + Blowjob + Licking + Kiss)
- A's Night Interactions Special Events
- New choices (locations) in the morning

v0.19
- Ema's Story (Little Update - Epilogue)
- Ai's Story Update (New Boobjob + Handjob and Blowjob New Perspective)
- New choices (locations) in the morning
- Dialogue Refinements: A few minor adjustments have been made to the dialogue throughout the story.

v0.18
- Ema's Story Update (New handjob + New Blowjob animations)
- Ema's Night Interactions Special Event
- New choices (locations) in the morning
- Dialogue Refinements: A few minor adjustments have been made to the dialogue throughout the story.

v0.17
- Chiaki Special Events (Night - New Handjob and Blowjob Scenes) (Call Chiaki -> Explore other options - Only available when Chiaki's Corruption stat >= 6)
- Tokuko Story Update (Animations)
- Ema update (Story + Blowjob + ?)
- New choices (locations) in the morning
- Dialogue Refinements: A few minor adjustments have been made to the dialogue throughout the story.

v0.16
- Walkthrough mod
- Chiaki update (Story + Blowjob + Kiss)
- New location (Gym)
- Some little-little special Events

v0.15
- Story Changes: In the revised version, the introduction and nighttime interactions between the MC and Tokuko have undergone significant changes.
- Ai Ending/Tokuko Introduction
- Tokuko Introduction / Tokuko Night Interactions
- New Status quo
- Some special (little events) in the game (Tokuko).
- Dialogue Refinements: A few minor adjustments have been made to the dialogue throughout the story (Ai).
- v0.15 Hotfix is not required for Android users, it's already solved there. If you choose not to download it, you can still select 'Intervene' to allocate points to Tokuko Boss, because it's only a text mistake (no Game-Breaking bug). The upcoming version (v0.16) has already resolved this issue. Sorry for the inconveniences.

v0.14
- Story Changes: In the revised version, the introduction and night interactions between MC and Ema have been altered to exclude the involvement of MC's father. Instead, MC takes on a more active role, revealing their intention to actively corrupt Ema. This simplifies the plot and allows MC to play a more prominent role in the story (Humilliate Ema at every opportunity). On the other hand, story introductions between MC and Ai remain largely unchanged, with only minor adjustments such as a brief introduction and an individual ending added to Ai's story.
- Ema Night Interactions: Mostly Humilliation Stuff + Handjob
- Ai Night Interactions: Teasing + Blowjob <3
- Special events for Ema and Ai (Morning): when they undergo the corruption process.
- Dialogue Refinements: A few minor adjustments have been made to the dialogue throughout the story.

v0.13.5 (Rework)
- Enhanced Prologue (New dialogue and renders to start the MC'S revenge. This prologue includes a "joke ending".): The central theme in the prologue revolves around the MC's yearning for transformation. The MC's motivation for aiding Naoki stems from a genuine desire for an authentic friendship, untainted by deceit. As the story progresses, the MC becomes intrigued by Tokuko, sparking their interest. Naoki extends a helping hand to the MC in pursuing Tokuko, and driven by the MC's aspiration for change, he accepts, determined to achieve his goals without resorting to deception.not to use deceivements to achieve his goals A bond appears to form between the MC and Tokuko, but an unforeseen event disrupts their connection. Caught in a moment of temptation, Naoki succumbs to its allure. Driven by a desire for revenge, the MC begins his journey. Simple, isn't it? XD
- Added Chiaki Night Interactions into the story! (Handjob and Nipple Licking Scenes)
- System Overhauled: Departing from its sandbox origins, the game has embraced a semi-linear approach, aimed at enhancing the story's pacing, cohesiveness, and impact.
- Special Events: The MC now has the opportunity to interact with Chiaki at the Academy, with new dialogue options available based on the current stage of the story: While these special events may not directly impact the main narrative, they serve as meaningful moments to explore the evolving dynamics and growth of the girls throughout the story.
- Stats (Progress Tracker): Keep track of remaining events for each character and the overall story!

v0.12
- Introduction path for Ema
- Introduction path for Chiaki
- Improved some early dialogue
- Added 120 new renders
- Added 5 new animations
- +2500 lines of new code

v0.11
- Introduced the main characters of the story and established the MC's main purpose.
- 2 new animated scenes for Chiaki.
- +1800 lines of new code
Hello! I'm Avant, a solo game-dev working on NSFW projects!

I am currently working on a game which focuses in corrupting and taking the MC's Friend's harem to your side!

DOWNLOAD
Win/Linux
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Mac: – –
Android: – – –

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This is pretty good considering the few resources that were invested, I enjoyed it a lot, I like all the heroines.
 
The main character is pretty cringe but the corruption is sooo good
Got to agree with you, Don't really care for the mc's personality but I love the stealing of the harem and how they get corrupted, just wish it wasn't because of some magic tech and instead was because the mc was just better.
 
Love this game not for the graphics but the sheer mind fucking story and corruption. Honestly this is really one of a kind story out there. If you like the corruption gerne, this is a must!
 
Finally a nice Koikatsu game that doesnt look like made in 5 Minutes. Maybe some better script and its really good.
 
There are a few spelling mistakes here and there, but it's a small one for the story and the slow, inevitable corruption of the girls ♥
 
I really love the concept of stealing someone else's harem and honestly its one of the times I'd fully understand why the MC does so. Naoki is a crappy friend, clearly a bit spoiled, and didn't even have the balls to follow up on apologizing for what he does. So making him suffer for a year is more than worth it. Can't wait to see where it goes for the last of Ema's route and how the reveal goes. The dev's other corruption game wasn't bad but was definitely an earlier game - the reveal to the girls partner was solid so I'm excited to see how he does it with this larger story.
 
Working through this one now. Definitely gets to world building quickly. Good stories and good dialogue are often overlooked in these games, nice to see some effort.
 
Will have to try this. Many positive corruption comments makes it seem compelling. I'm assuming the artwork/graphics are subpar though.
 
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