Welcome to Gakuen Alice

He is ten years old when the series first begins. Ruka first is shown flying with the help of a huge bird and crashing into the window where Mikan Sakura and Natsume are. Natsume then asks him what took him so long and he says he asks who that person (Mikan) is and if she is an Alice. Ruka doesn't stop Natsume from bullying Mikan and even asks him to use his alice on her if she is bothering him. But he wonders why Natsume has not use his Alice on her right then. Natsume replies that it does not work. Natsume and Ruka then leave out the window when Misaki and Narumi arrive.
When Mikan is assigned to sit with them, she reacts with shock and dismay. They, on the other hand, are indifferent to it. When Natsume gives Mikan the task to go to the Northern Woods to prove to everyone she is and Alice, Ruka questions him about his reasons for it. He asks Natsume if something special about Mikan caught his attention, which Natsume denies.