Personality

Ruka is a little nicer and can be considered more bearable than his best friend Natsume. While Natsume is cold and distant, Ruka is warm and pleasant to people. Like Natsume, his classmates see him as serious and cool, but Ruka really isn't that type. He is an animal lover, which corresponds with his Alice. Ruka has been shown to be embarrassed by his Alice and Hotaru noted early on in the series that people never saw his Alice, but were aware of what his Alice was. When he meant Natsume he was embrassed of his Alice, but was told by Natsume that his Alice was a gentle type that could help people. He often falls victim to Hotaru's blackmail when she takes pictures of him in embarrassing situations and selling them to his fan club for money. For that reason, he disliked Hotaru, even though he seems to befriend her as they try to save Mikan from the Elementary Principle.

He is a very loyal friend, especially to Natsume, and later Mikan. Ruka knows of Natsume's sacrifices and feels helpless that he can not help his friend. Such that, Ruka feels that he is a burden to Natsume because the school gave him his star rank based on making Natsume do dangerous missions and that the school threatens to harm Ruka if Natsume disobeys. Ruka even claims that when Natsume is in pain, he is in pain. When Mikan, back in the Northern Woods Arc, made a comment on Natsume's scary personality, Ruka was noticably angry at her words, because of how much of Natsume goes through. His loyalty is most admirable in the Hana Hime arc, where Ruka used mice to fight with, even though he hates using them for such things. But having his friends in danger had him make an exception. In addition to watching Natsume suffer, he is saddened to watch Mikan make unbearable sacrifices to protect her friends and suffer the consequences.