ADN-440 A female coworker who started at the same time as me came onto me because she wanted to create memories, even though I'm engaged

Ryoji and Miki had never even acted like they were dating, but suddenly announced their marriage! The colleagues who would gather at Ryoji's house for drinking parties every chance they got were surprised but still congratulated the couple. "...I guess this is the last time we'll be gathering in Ryoji's room like this," they said as the celebration mood enveloped them, knowing that things wouldn't be the same once they had a family. They drank until dawn and finally called it a night. ...And on the way home as the sky began to lighten, Jun, having made up her mind, returned alone to Ryoji's house.