Y/N = Your Name

* 3rd Person's P.O.V

Cordelia was carrying baby Y/N to the pool. Baby Y/N was crying, " Shut up!" Cordelia yells at her. Y/N avoided eye contact and whimpered. Cordelia held the baby over the water, Baby Y/N was looking down. " It was nice meeting you" Cordelia smirked. " Well...not really" she evilly chuckled. Cordelia was about to drop Y/N..... " Put her down!" when a voice said. Cordelia turns her to see her son Ayato. Baby Y/N smiled at his arrival, " What are you doing here? Shouldn't you be studying?!?" Cordelia shouted." I'm not letting you hurt her" Ayato said. " Too late" Cordelia evilly chuckled. She drops baby Y/N into the water and " Y/N!" Ayato screamed. He falls to his knees and cried. " Get up Ayato. She's dead" Cordelia walks towards him." I hate you, You're a heartless creature!" Ayato yelled." Take that back" Cordelia bends down to his height." No!" Ayato said." Listen to your mother, Apology at once!" Cordelia was mad." Never!" Ayato got up. " Fine, I see how it is" Cordelia said. She pushes Ayato into the pool, Ayato was almost at the bottom at the pool. " Worthless children" Cordelia walks away. Ayato was trying to swim to the surface, he turned his head to see his baby sister Y/N. Ayato swam towards Y/N and grabbed her. He went up to the surface and climbed out of the pool. " Y/N?" Ayato laid Y/N on the ground. He noticed she wasn't breathing. ' Oh no. I'm too late' Ayato thought, " Y/N, come on. Stay with me" he cried. Baby Y/N started coughing up some water. " Y/N!" Ayato gasped. He hugged his baby sister and she was confused." I'm so sorry" Ayato was crying. Baby Y/N hugged him back, " Come on, let's go home" Ayato picked her up. He carried his adopted baby sister away. 

Ayato was taking Baby Y/N back inside the mansion. " Ayato, where were you?" Reiji walks up to him. He noticed Ayato and Baby Y/N were wet. " What happened to your clothes?" Reiji asked. " Mom nearly drowned us" Ayato placed Y/N on the couch. Baby Y/N was coughing, " Do we have any clothes for her?" Ayato asked." I don't think so. Let me get the backpack" Reiji walked away. Ayato follows him, Laito walks into the living room. He noticed his baby sister was sitting on the couch. " What are you doing here?" Laito walked up to her. He noticed that Y/N's clothes were wet, " Oh my! We can't have you looking like that" Laito picks her up. He carries her out of the room, Reiji and Ayato walk back with the backpack. They both gasped when they noticed that Y/N was gone." Where did she go?" Ayato said." Search the house" Reiji looks under the couch. They both ran out of the room. Meanwhile, Laito was dressing his baby sister. He ties a ribbon in her hair, " Perfect, you look fabulous" Laito smiled. Baby Y/N was wearing a white and pink dress. She also had a pink ribbon on her hair. The door opens, Y/N turns to see Reiji. " So it was you who took Y/N?" Reiji asked. " I didn't steal her. I just brought her to my room" Laito held Baby Y/N." Besides, Kitten-Chan looks adorable in her dress" he blushes while smiling. Baby Y/N was giggling. Reiji just sighs while pushing his glasses up.

* Time Skip

Months later, The Sakamaki brothers were getting attached to Baby Y/N. During Lunch, Ayato fed her milk. Then, Reiji taught Y/N how to read. Next, Shu was taking naps with her. After, Laito was dressing Baby Y/N. Later, Subaru was walking around the garden with her. At night, Kanato was singing her to sleep. Baby Y/N yawned and fell asleep. " Goodnight Y/N" Kanato kissed her forehead. He gives her Teddy and walks away. Y/N hugs the bear and smiles. A figure was standing in front of her crib. They reached a hand towards the baby.