Ryoken heard the screams of the kids who were tortured into duel. He looked at his father asking:

- Why father? Why you needed to take him from me?!

Dr. Kogami looked at Ryoken answering:

- Yusaku Fujiki... The boy who you love. He's most stronger here. Accept the fact that he's now here, Ryoken. Don't you dare to do anything ridiculous. This is the best for the humanity!

Ryoken grinds his teeth and sobs covering his ears in order not to listen their screams. He hears them every day. He watches how his beloved Yusaku is tortured and electroshocked. He shook his head saying:

- Make them stop... I don't want them to suffer... Father...

But, no one could hear him. Of course not. He was just an 8 years kid. That day, Ryoken decided to make a move, knowing that he'll make Yusaku less suffering or maybe not. He wanted him to be happy, not to suffer. After all he was the boy who captured his heart.