My Girlfriend's Not Here Today manga volume 4 features story and art by Kiyoko Iwami.

“SHE’S CHEATING ON YOU WITH ME.”

With that simple sentence, Fuuko confirms Nanase's worst fears and demolishes her already fragile trust in Yuni. As the couple grapples with who's responsible for what and how to move forward, they each come to the same conclusion: They don't want to give up what they love. But do Nanase and Yuni want the same thing?