Grandfather stayed at the hospital due to him getting old. 
     "Son, can you do me a favor?"
     "What is it?"         
     "You know that I won't be able to go to your daughter's 17th birthday party. And I've made a gift for her. It's a human doll."              
     "W-what?"
     "You heard me, it's a human doll. This human doll is a male. Give it to her on her 17th Birthday party. Make him alive. I know it's hard to put back his heart. But please. This is for SaeRin. You don't want to let her be alone forever, don't you? And you're gonna let her live on her own once she's 17. She goes to girl's school. She's inexperienced. She don't know how to choose a boy. I  want her to have a good future boyfriend and husband. So please just do it. Trust me, this young man is a good one."     
     Father sighed, "Okay. I'll do it."
     Grandfather smiled, "He's still in the guest room, laying down there. His heart is in the jar with the tag 'SHH-01'.  The jar... is in my office. You know which shelve..."
     Father nodded, "I understand. I'll start it... today."     
     "Oh and son, can you erase all his memory? The machine still works, right?"
     "Yeah it still works but why do we need to erase all his memory?"      "He deserves a brain that is full of happy and good memories instead of bad memories. He got no parents. He got no house. He looks fragile when I first saw him. I think he have gone through alot. I'm sure