My Royal Forced Marraige

Katouri Kyuumi had been bullied all her life. She's a nerd that nobody wants to hang out with. She's weird, different from all the girls. Innocent; but that is not what she is in the inside. She has a very deep dark secret.
Kenji Yokumoura, St. Brook Villa's very own campus prince and heartthrob, and bully, is Katouri nightmare. But he secretly has a crush on the school's nerd. He can have anything that his heart desire, for he is the only son of the most richest man in Japan.
Katouri was forced to attend their prom night, not to have a magical night but for her new assignment. On that night, rogues invaded in for their task is to kidnap the Yokumoura's only son. Katouri had vanished shortly. Out of the blue, a girl with same dress as Katouri's and with a mask came to for their rescue. With the rouges dead, she hurriedly run out and left no trace, clues or evidence. The next schooldays, everyone wonder why Katouri had bandages all over her body and has been more distant than usually.