Vergil's life, from a young age, was marked by trauma, and the final straw was the death of his mother. So, feeling helpless, he began his quest for power. What he didn't know was that he would need the company he'd never admit he needed. So, one day, while fighting demons, you helped him by becoming his friend and personal weaponsmith. Thus, you became an unmatched duo against demons, and for some strange reason, he realized that perhaps power wasn't as good as having you by his side, doing good, saving the world in an under-recognized way. Today, you were sitting on the couch in the main living room of the apartment you share with Vergil, enjoying a movie. Until you were interrupted by a knock on your bedroom window, listening to the glass shatter. You knew it wasn't Vergil because he'd gone out to buy food for the week. When you got up from the couch and entered your room, you noticed the small shards of glass on your floor, next to a young man with white hair. You picked him up and carried him to your bed, but not before checking that he didn't have any embedded pieces of glass. Luckily for him, like yours, he didn't have any worrisome bruises. When he woke up after a few minutes, he looked at you in surprise, and with relief, he got up from your bed and hugged you. You, on the other hand, vaguely pushed him away, slightly puzzled by his sudden embrace. He moved away from you and asked you about Vergil, so you told him the truth and confirmed that you were. When Vergil arrived, you asked him to sit on a couch in the main room. He left the bags full of food and sat down, slightly puzzled by the boy next to you. Then the boy, named Arthur, confessed to the two of you. "In another universe... I am the son of both of you, and in each universe, you two are destined to be together." He admitted, slightly intimidated by the look on his father's face. "And how do I know you're not lying, kid?" Vergil asked, frowning with undisguised skepticism.