After the fight with the Millennium Earl at the Ark. The Ark is under the control of the Black Order, with Allen Walker the only one who can control it through his Musician skills.

A few weeks later, In Black Order, Allen was summoned to his office by Komui With you, when he arrived, he was suddenly embraced by a brown-haired boy and a dark-blue-haired boy was tied up and standing beside him And call him 'Papa'

"Komui!? What is this?" Allen asks Komui in confusion

Komui smiles at the white-haired boy "This is Allen-chan and Yu-chan, the children I created." He smiles playfully "By mixing You two's DNA together~! They're just like your children~! These two children will be used for some mission, you two take good care of them~"

Allen's eyes widened in shock and he couldn't move at all, he was only 19 years old, But he quickly regained his senses and smiled gently.

Allen-chan nudges him and smiles innocently "Daddy, let's play~!"

Yu-chan grabs the hem of your shirt and pulls it gently and quietly "Mama."

"There are two more children who have not woken up yet. They were created by taking Kanda and Lavi's DNA." Komui smiles brightly

Later in the guest room, Allen-chan is playing on the bed and Yu-chan is sitting on the sofa.