Content of the DLC and installation guide.
 
 

Installation of the Special Patch

After you installed the DLC you need to install the “After Party Special Patch” to use the Story mode.
 
 
First install the DLC, then install the patch.
 
 
Go to http://afterparty.illusion.jp/ – [illusion.jp] 
 
(if the age window appears, click the left button. After that rlick the bottom right After Party image)
 
 
Click on the big green button, download and save the patch somewhere. The exe is a archive. So double click and extract it somewhere.
 
 
(now quoted from the Illusion manual)
 
 

 1. Select all of the data in the Koikatsu Party Special Patch folder and copy it.

 2. Open the folder in which Koikatsu Party is installed.

　　　Paste the data you copied into the Koikatsu Party installation folder.
 This will overwrite the data. A message will pop-up asking you to confirm that
 you would like to overwrite this data. Confirm that you would.

 3. When the data finishes overwriting, the patch has been installed.

 
 
Also with pictures: http://koikatsuparty.illusion.jp/sppatch/readme.html – [illusion.jp] 
 
 
You could install the HF Patch instead, which is a mod pack. It also includes the Special Patch: https://steamcommunity.com/sharedfiles/filedetails/?id=1772989046 – [steamcommunity.com] 
 
 
 

Content

The After Party DLC is the two japanese DLCs “After School” and “Summer personality” combined in one. Only difference: After Party got an proper english translation.
 
 
What is added, copied from the manual and the Readme:
 
 

Manual:

 
 
●DLC Content
 
○New personality archetypes:
 
Extrovert, Athlete, Angel, Seductress,
 
French Girl, The Brit, Dominatrix, Robo
 
 
○Added S*x Positions:
 
Special Receive: Snuggle HJ (Lewd + Train only)
 
Special Penetration: Doggy Press (Pro or Lewd + Train only)
 
Thre*some Receive: 2x Blowj*b, 2x Blowj*b (Alt)
 
Thre*some Penetration: C*wgirl Cunnilingus,　 C*wgirl Cunnilingus (Alt),　 Doggy Fingering,
 
　 Doggy Fingering (Alt)
 
　* Lewd , Promore　　* Trainmore
 
 
○Added Features:
 
・Added new Seating Chart options:
 
├ All cla*ses besides 2-1 can now hold a maximum of 25 students.
 
└ You can now specify “Cla*s” or “All” when selecting the “Randomize Empty Seats” and “Clear All Seats” options.
 
 
・Intimacy system added.more
 
 
・Added a Map Selection feature for dates.more
 
 
・Added new setting options (Game Settings) in the Config screen:more
 
├”Busy characters won’t stop to chat” option added.
 
├”Set cla*s size to max” option added.
 
├Various controls added to control how girls interact with player.
 
├”Display background NPCs during train scenes” added.
 
└ Toggle to enable/disable new date system (map selection).
 
 
○New character customization options:
 
Hair：
 
Front Straight Curl　 Combed (Right),　 Combed (Left),　 Side Sweep,　 Long Side Straight,　 Long Side Messy,　 Back Straight Curl,　 Short Orderly (R) ,　 Short Orderly (L),　 Tied-Up
 
 
Clothes：
 
Wedding Dress,　 Frilly Apron,　 Tuxedo (Male),　 Poofy Sleeve Top,　 Poofy Neck Parker,　 Japanese Maid (Top),　 CA (Top),　 Formal Pants,　 Frill Skirt,　 Flight Attendant Skirt,　 Japanese Maid (Bottom),　 String Thong,　 Micro Monokini,　 Cross Halter,　 Wedding Panties,　 Wedding Puff Sleeves,　 Ribboned Wedding Evening Gloves,　 Wedding Gloves,　 Wedding Garter Belt,　 Wedding Socks,　 Wedding Shoes,　 Formal Shoes,　 Laced Boots,　 Short Laced Boots,　 CA Shoes　
 
 
Accessories：
 
Sakura Ornament,　 Wedding Tiara,　 Wedding Veil,　 Extension 01-16,　 Headdress,　 CA Cap,　 Bridal Teardrop Earring,　 Wedding Choker,　 Formal Ribbon,　 Zipper Necklace,　 Nameplate,　 CA Neckerchief,　 Wedding Bustle,　 Wedding Ribbon,　 Wedding Ring (Female),　 Wedding Ring (Male),　 Engagement Ring,　 Wedding Bouquet
 
 
○Map:
 
Love Hotel, Karaoke, Chapel, Crowded Train, Train, Park (Night)
 
 

Readme:

 
 
●Additional Game Content
 
 
〇The Date Map and Date System
 
・Park・Café・Karaoke・Amus*ment Park・Cla*sroom
 
Selectable maps will vary depending on the character’s Intimacy stat, etc.
 
Additionally, the new date system will only be unlocked after the first date with a girlfriend.
 
 
〇Thre*some Events
 
・Click the “Someone’s watching…” button during a standard s*x scene
 
・Click the “I want in…” button during a girl-on-girl s*x scene
 
Note: Only possible when both girls’ Sexual Experience is “Pro” or higher and neither is angry with you.
 
 
〇Masturbation to S*x Events
 
・Click the “Let’s do it!” button while a girl is masturbating
 
Note: This option is only available if the girl is not a virgin.
 
 
○Crowded Train S*x Events
 
・May happen on the train ride home from an amus*ment park date
 
Note: This event has a chance to occur when the girl’s Sexual Experience is “Pro” or higher.
 
 
○Additional Features
 
・Intimacy system added
 
This is a value that affects the maps available during dates, and the content of those dates.
 
Intimacy is raised by interacting with a girl in school or on dates.
 
・Added “Intimacy” parameter to status screen
 
Click the “Switch Info” button to change the information displayed and show this.
 
 
〇Config menu
 
・The following have been added to the Config menu:
 
Set cla*s size to max
 
Girls won’t talk to PC or request s*x
 
Girls won’t trigger dialogue window (request chats/s*x)
 
Frequency of s*x requests from girls
 
Frequency of chat requests from girls
 
Frequency of requests from girls during dialogue
 
Display background NPCs during train scenes
 
 
○Increased Cla*s Size
 
・All cla*ses besides 2-1 can now have up to 25 students.
 
Up to 38 characters (selected randomly from those available) will attend school on any given day.
 
You can enable/disable increased cla*s size on the Seating Chart screen.
 
You can also adjust this with the “Set cla*s size to max” option in the Config menu.
 
・You can now set empty seats randomly/transfer all students out on a cla*s-by-cla*s basis.
 
 

 
 
Hope you enjoy the post for コイカツ / Koikatsu Party After Party DLC, If you think we should update the post or something is wrong please let us know via comment and we will fix it how fast as possible! Thank you and have a great day!