After finishing their first part-time job, four coworkers—senior Ryo-kun, Yuki-chan, and the girl I fell in love with, Airi-chan—gathered for a home drinking party as a welcome event! It was my chance to get close to Airi-chan! As the drinking started, the conversation about work and love grew lively. Suddenly, Yuki-chan whispered to me, "I like Ryo! You like Airi, right? Why don't we help each other out?" Yuki-chan then suggested a King's Game! While drunk, everyone hugged and kissed. I even got to kiss my beloved Airi-chan! But after chugging my drink to liven up the mood, I fell asleep... When I woke up... no way!? Ryo-kun and Airi-chan, the girl of my dreams, were already flirting and fucking in bed! Airi-chan's soft, huge breasts! Her erotic kisses... I was sad and frustrated, yet for some reason, my cock was rock hard. Yuki-chan, who had been sleeping next to me, woke up too... we were both feeling horny. Noticing my depressed erection, Yuki-chan, driven by jealousy, secretly gave me a blowjob! Out of mutual frustration, we had emotional sex that felt so good I ended up with a massive creampie! Was I being watched by Ryo-kun and Airi-chan!? Then, Yuki-chan stole Ryo-kun away and had sex with him after an intense kiss! Airi-chan, whose erotic switch was still on, gave my recently cummed cock a wet blowjob to force a re-erection, then attacked with an erotic cowgirl position, her huge breasts shaking violently! Eventually, it turned into a massive orgy where the four of us swapped partners and fucked relentlessly, devouring every bit of pleasure! I got to creampie my beloved Airi-chan multiple times! It became the best welcome party ever, with everyone cumming over and over. "Let's do this as a group of four again!"