A brother and sister who lost their parents and lived together. - Throughout his life, the younger brother had a strange love for his older sister. - My older sister is getting married and has to leave... - Although he wishes for his sister's happiness, his younger brother does something forbidden because he doesn't want her to become someone else's property! - ? - A momentary day when the sister who wants to accept her feelings becomes entangled with hers even though she knows it is no good.