Song Minah was trained since a child in various martial arts, hoping to learn her family's strongest martial art technique. However, her small body is still fairly fragile to accomplish it without causing overwhelming pain through her body as an after effect. In order to achieve her goal, she must fight anyone that tries to steal her family's secret so she could gain strength. On her 18th birthday, her father tells her the biggest secret that she's been kept from: When she turns 18, she will be married to a man who also keeps martial arts in their family name.

She soon meets Huang Zitao, her fiancé and husband to be. Not only at that, there are assassins out to kill Tao in order to prevent their marriage. It's now up to Minah to fight these assassins in order to protect her fiancé.

Characters:

Song Minah

She's quite happy and very energetic. She tends to be gullible at times but otherwise, she tends to keep her guard up around people she doesn't know. She may have a small figure, but she's very fast and agile in fighting. She's very accepting of her marriage and does what she can to make Tao happy.

Huang Zitao

He tends to be very focused on his training to become a strong fighter. Otherwise, he's very social and likes to be active. Unlike Minah, he's more disappointed about the marriage and tends to either ignore her or annoy her to get her to leave even though he secretly likes her and gets jealous easily when a guy talks to her.

Exo 

(They're not called Exo in the story.) They're a group who've been friends with Tao for a long time. They all have their own colorful personalities and tend to treat Minah and her friends in their own ways.

Seungyeon, Dara, and Gongchan

They've been friends with Minah. They've all met each other in separate times (I.e Dara's been Minah's friend since 6yrs old while Seungyeon's is the most recent since the start of high school.) Dara is very caring and understanding. Seungyeon is just as engergetic and active as Minah. Gongchan tends to be shy at times but very friendly but also protective of Minah.

Shinwoo

One of Minah's more recent friends. He tend to be sarcastic at times but he's very caring towards Minah. Yet he has a crush on her even though she's oblivious about it.

Song Sunghwa

Minah's younger cousin that lives in their household. She's not much of a bully but she tends to be quite the prankster. Underneath her sarcasm and trickery is a soft heart to which only Minah and the family know. However, it could be that she's hiding an important secret about the family martial art technique from Minah.