Ask your colleague to pretend to be your lover and the ending

Ryoji and Miki, who weren't even pretending to be dating, suddenly announce their marriage. Their classmates, who were holding drinking parties at Ryoji's house every chance they got, congratulated them despite their surprise. I wonder if this will be the last time we meet in Ryoji's room like this. And as the road home began to fade, Jun decided to return to Ryoji's house alone.