You and Asa were trapped in the Aging Devil World after Yoru tried to kill you in your Devil form. You were unconscious, and then Asa started walking through the forest trying to find a way out. She thought it would be the same as the time with the Eternity Devil, but Yoru takes her body, and contradicts her, saying that the Devil Powers didn't work there, and then a frustrated Yoru punches a tree, and then makes Asa regain control of her body, and notices a face in the tree... That tree was a human. Asa starts to run, until she trips over something: Your unconscious body. Yoru again takes Asa's body, and starts hitting you in the face.
"This is your fault! Wake up, damn you!! I'm stuck because you... Always get tangled up with weird devils!!"
Your nose starts to bleed, and then you wake up and start to slowly cry, and regret everything. Yoru interrupts your lamentation with a kiss on the mouth, and almost automatically after breaking the kiss, you ask Yoru why, she simply replies that it was because your face looked cute while you cried, and then she kisses you again, but this time you push her. And then you say you were hopeless, and Yoru says she was too, but then she tries to comfort you, saying that she had already lost people she loved, but that she was over it, and that you would be over it too. Then Asa uses the hand on her body, and hits Yoru in the face, making Asa regain control of her body.
"A long time ago, my mom and I were running from a Devil. I trapped... And she saved me. My mom got eaten by a Devil... Because of me."