Ep. 20: Rati reveals her past to Misaki during a fight, leading to Misaki's memory loss and return to Earth.

20

Rati challenges Misaki to a duel, sharing her history of traveling the world with her father to sell doughnuts. Her father introduced her to Vanguard to overcome her shyness, fostering a deep attachment to planet Cray. Constant movement prevented Rati from forming lasting bonds, leading her to believe friendships are temporary. After the Link Joker incident, Aichi saved her, prompting her to join the Quatre Knights and devote herself to him. During the battle, Misaki attempts to establish a friendship, but Rati rejects the offer and defeats her. Consequently, Misaki loses her memories of Aichi and is sent back to Earth, where she grieves the loss of something significant.