Yūto/Relationship

Ruri Kurosaki
There have been no interaction between Yuto and Ruri. However, in episode 24 Yuto's and Yuzu's conversation revealed that the first time Yuto encountered Yuzu he mistook her for Ruri - who is currently captured by the enemy. This displays the care and protectiveness Yuto has towards Ruri as he stated to Yuzu (at that time thinking she was Ruri) "I don't want you to get hurt anymore." His concern for Ruri's safety may be the reason why he continues to be around Yuzu. After having a flashback, Yuto remembers an event during or after Ruri's capture as well as whispering her name after the memory ended.

He is shown to be very supportive and defensive of Ruri as he told Shun, after he also mistook Yuzu for his little sister, that Ruri would never learn the enemies form of summoning with a smile on her face. This being said with full determination and belief in her.