"It's that time again sis."
"Yeah I know."
"Can you survive this time without being caught?"
I cast my mind back to last year and the close shave I had then.
"Of course. What do you take me for!?" I growled.
His reply made a smile etch up both of our faces.
"Me."

Moving from South Korea to America when she was a toddler, Ae-Cha is a happy, outgoing teenage girl that knows what she wants.
From the outside her life looks pretty normal to anybody.

She just happens to have a superstar older brother on the other side of the world that looks a lot like her and needs her help from time to time.

By switching places.

Gender and all.

In an agreement which lets the siblings visit both sides of their family, they swap identities for 4 months a year. They have successfully pulled it off  twice, but now what happens when mishaps and unfamiliar feelings mess with their plan and cause both Taemin and Ae-Cha to slip up and run the risk of being found out? They just have to work harder and put their knowledge of each gender to the test.

Can Ae-Cha really act like the man her brother is while falling head over heels?
And can Taemin really put up with female problems any longer!? Especially with a mob of guys on his.... her tail!?

Characters:

Name: Lee Ae-Cha
Age: 17

Moving from South Korea as a youngster, Lee Ae-Cha has grown up in Seattle with her father ever since his divorce with her mother.

Fluent in English and Korean she popular at her school and around where she lives.

She is generally nice but does have a bad temper and is easily irritated. She is also very stubborn .
Although she is shy when someone compliments her as she is quite self-conscious about herself.

She gets along very well with her brother and her dad, but not so well with her mother.

Name: Lee Taemin

Age: 18

The older brother, Taemin decided to stay with his mother when her and his father divorced and his sister moved with him to America. He since joined a talent agency and then was recruited into a band, who became huge. 

Fluent in Chinese, English and Korean.

He loves his sister very much and is always checking up on her school records when he isn't there.

Quite shy and sometimes really quiet, his personality differs from his sisters.

Name: Niki Wu
Age: 17

Ae-Cha's best friend and partner in crime. She seems to know every rumor, bit of gossip and secret that goes around and also is a good judge of character.

She is fluent in English and Chinese and a little bit of Korean.

A big fan of K-Pop shes knows who Taemin is and is a huge fangirl.

She doesn't know anything about the identity switching.

Name: Choi Minho
Age: 20

One of Taemin's band mates and the nicest of the group. He is the most laid back but is somewhat lazy.

Fluent in Korean and only knows a little English.

He has no idea about the identity switch, but can always sense something different when it happens.

Ae-Cha doesn't really get along with him as he keeps interrogating her when she is posing as Taemin.

Name: Kim Kibum (Key)
Age: 20

Another of Taemin's band mates and the most selfish out of them. He's always caught looking at himself in any reflective surface and fixing his hair a lot.

Fluent in Korean and English.

Has no idea about the switch.

Ae-Cha likes him, but he seems to ignore her a lot when she is posing as Taemin.

Name: Lee Jin Ki (Onew)
Age: 22

The leader of the band. He always seems to be busy and doesn't seem to have a lot of time from everything he wants to do.

Fluent in Korean.

He had no idea about the switch but seems to get suspicious when 'Taemin' (Ae-Cha) become secretive when sharing a bedroom with him.

Name: Kim Jong Hyun
Age: 22

Band mate of Taemin's. The one always laughing and keeps the peace.

Fluent in Korean and Chinese.

Doesn't know about switch.

Ae-Cha notices he has a strange closeness with Kibum.