On her seventh birthday, Chalita's entire family was killed. Kawin/Kevin, was given the option to slay three people in order to protect one. His guilt drove him to distance himself from her.
In her youth, Chalita is adopted by a mysterious stranger who is known as, "Nai Noi (Young Boss):" He turns her life around and is her means of support. Kawin moves next door to Chalita and their lives become entangled. Feelings blossom, and happiness is reintroduced to Chalita's life, but Kawin risks losing her, if his secret were to ever be revealed. If Chalita ever recalled the past, he will lose everything.