Twice rejected

Koko Magnus, an ugly and useless she-wolf decided to give her heart to her beautiful twin sister who was supposed to be the next Luna of the red moon pack, as a redemption for causing the death of her father, so as to gain her mother's love. She knew there was no way she'd enjoy the love in death, but what was the use of her life anyways?
Alpha Niyol, who was yet to get over the pains of loosing his beloved mate, meets a second chance mate two years after, but she doesn't look anything close to his beloved late mate. How can he accept another woman that is not Erika? Will he even love her?