Eternal Storm builds on Eternal Rain's original cast...
Core Four Members
Kita's sister, Shiori Mikichi, takes center stage in Eternal Storm, when she is fourteen years old.

Specialties: Añi fan, Water Key pendant
Likes: swimming, hanging out with her friends
Dislikes: arguing, fighting
Relatives of Note: sister (Kita), father
Closest friends: Sora, Atsuko, Toshiro, Reka, Shuichi
Others' views of her...
Kita: She's still my little sweetheart Squirt. <3 (Shiori: Please don't say such embarrassing things, Sis'! T^T)
Atsuko: She's a crybaby. -_-
Sora: She's like my sister.
Toshiro: Shiori is really nice. ^^
Reka: She's gotten a bit reckless. 0_0 (Shuuichi: You're one to talk. -_-')
Takeshi: Shiori has certainly grown a lot. ^-^
Eternal Storm builds on Eternal Rain's original cast...
Core Four Members
Toki's younger sister, Atsuko Shimeru, is the second female lead.

Specialty: Water Key pendant
Likes: messing with her sister and Reka, sarcasm
Dislikes: being treated like a kid
Relatives of Note: mother, father, two older sisters (Yumi and Toki), aunt (Miko), cousin (Natsumi)
Closest Friends: Toshiro, Sora, Shiori
Others' views of her...
Toki: She surprises me sometimes. She's actually a good fighter. 0_0 (Atsuko: Pft! Of course! >_<)
Toshiro: Atsuko likes to call people names. :(
Reka: Little sadist. -_-' (Atsuko: Hey! I'm gonna yank your ponytail for that!)
Shiori: She's okay when you're on her good side. ^^
Sora: *nods* (Shiori: He doesn't talk much. ^^')
Eternal Rain features a large cast of diverse characters...
The Cast: Earthen Keyholders
Jun-ai Shen is the team's projectiles expert.

Specialty: projectile weapons, small explosives
Likes: athletics, going to her cousin's plantation
Dislikes: incompetence, school, life at home
Relatives of note: father, mother, older sister (Ming), cousin (Shaoqiang)
Closest friends: Kita, Mara
Others' views of her...
Takeshi: She's an excellent fighter. ^-^
Reka: ...But her personality could use some work. -_-
Toki: Jun is a jerk. >.<
Kita: You guys don't give her a fair chance. She's all right when you get to know her. ^^
Shaoqiang: My cousin has issues at home, so... (Jun-ai: That's personal! >_<)
Mara: Jun-ai acts tough because she's learned to be that way, but she's got a soft side, too. ^-^
Eternal Rain features a large cast of diverse characters...
The Four Core Keyholders
Takeshi Nimahari is the leader of the team of Keyholders, the people selected to protect the elemental Keys under the supervision of the Key Guardians in each of the cardinal dimensions, or Gates.

Specialty: Water element attacks. His fighter rank is Nataña (intermediate fighter class).
Likes: Reading, Fishing, Hanging out with friends
Dislikes: Athletics (He's clumsy.)
Relatives of note: Grandparents
Closest friends: Yuki, Reka, Shuichi, Sharon
Others' reactions to him...
Reka: He can be a bit nosy, but he's an okay guy. ^^
Toki: He's brave. ^-^
Kita: Takeshi's kinda cute - in a little-sibling sort of way. ^^'
Sharon: A born leader. ^-^
Yuki: He's so funny and sweet! =^^= (Kita: What's your definition of 'funny'? The guy's got no sense of humor! -_-' )
Eternal Rain features a large cast of diverse characters...
The Core Four Keyholders
Reka Norikawa is Takeshi's second-in-command, as well as an ex-Guard from the Fire Gate's Llania region. He has gone AWOL at the series' opening.

Specialty: Fire and magma elemental attacks. His fighter rank is Yogan (elite fighter class).
Likes: Kids, building, horseplay, messing with people
Dislikes: getting up early, pompous jerks, when people pry into his personal life, guns
Relatives of note: Father (General Haru Norikawa), mother (Amara)
Closest friends: Hisao, Shuichi, Takeshi, Toki
Others' views of him...
Takeshi: He's very dependable and trustworthy, but very reckless. *sigh*
Toki: He's always risking his neck for us. He's too nice. *blush*
Kita: A piece of work. I like to mess with him. XD (Toki: You're a piece of work, too, Kita. -_-')
Shuichi: He's generally a nice guy, but you don't want to get on his bad side - he's got a nasty temper and a sharp tongue. Trust me, I've known him for years.