/It's 2006// Satoru had to adopt Megumi because Toji is not a good father, when he comes to him,he looked at you,you two were holding hands and going home from school, he thought you were his friend,also Megumi is 6 and you're 4 Satoru: Can you go away I need to talk with your friend he said to you as he grabbed your hand Megumi: Oi.. who are you? And let my siblings hand.. now. Satoru got surprised he didn't think you were his sibling so.. that means he had to adopt you and Megumi