Kaya and Izumi arrive at their alumni reunion late. Kaya and Izumi seemed to have been part of a club in university and left after her pregnancy. Hibake (who will appear in other chapters) had a massive crush on Kaya. Once again, Kaya pulls out her tit to feed Takeshi. Izumi, already piss drunk, tries to stop Kaya but the rest of the crew simply get him more drunk.

They convince Kaya to drink with them to get Kaya to show everything. Two plan on getting Kaya drunk because "she's that kind of girl" (This case where she gets too drunk we will become far too familiar with). After Takeshi knocks out and the real party begins. 

They suck on her tits, get her more drunk, take her clothes off, take pictures, and avoid the waiter seeing their deviancy. While they deal with the waiter, chaos ensues. Takeshi wakes up, Izumi wakes up and is promptly shut down by Kaoyama's karate skills, and Uno (fatso) takes his chance and fucks Kaya. In her inebriated state they take pictures/record Kaya while gang-raping her. 

They take a commemorative picture and flash forward to the next alumni meeting. Izumi and Kaya remember nothing of the last.