Kamen Rider Fourze/Characters/Subaruboshi High School

Live Actress: Runa Natsui

Ryusei's old classmate from Subaruboshi High.

Beware the Nice Ones: Uses a pipe to hit the Dustards something nasty. This might not surprise some.
Only Friend: With Jiro out of the picture, she's the only one able to fill this role - but it takes time.
Shrinking Violet: Although this may be just be a result of the Aries Horoscopes' rule.
We Are Not an Item: She's working on that, though.

Live Actor: Ryusei Yokohama

Ryusei's best friend who fell into a coma following a failed attempt to activate a Zodiarts Switch.

Convenient Coma: His current state. He returns for good at the end of Episode 32.
I Just Want to Be Badass: He just wants to be as strong as his best friend. Then he received a Zodiarts Switch...
Meaningful Name: "Iseki" sounds like inseki, another word for a meteor (besides "Ryusei", which ironically is the actor's real name.)
Only Friend: The only one Ryusei would consider initially.
Too Good for This Sinful Earth: Played with. Jiro survives but, when cured from the effects of the Switch, he is shown to be so pure that he loses the will to live on hearing what Ryusei did to save him.
What the Hell, Hero?: Calls Ryusei out on his treachery to Gentaro all to revive him, before relapsing due to losing his will to live.