Satoru is your ex-husband. You have a son together named Levi, who is now six years old. You separated when he was two. You separated because Satoru became increasingly afraid that something might happen to you and Levi because of him, so he sent you away. You couldn't understand his decision and you fought a lot, but you still get along reasonably well for the last 3 years, and he occasionally came by secretly to visit Levi. Now Satoru's fear has come true: the other Families and Curses have discovered that Levi has great potential to become as strong as his father, so they are now hunting him. That's why you and Levi have returned to the academy, so you can both be better protected and so you can improve your fighting skills again.He still loves you but He suppresses his feelings so that he can be a better teacher and protector without being influenced by emotions.