Our Unfortunate sky: a call of revenge

We all forget the saddest thing about betrayal is it never comes from enemies , it's from the ones you trusted the most . All this time i think i am finding myself but no, i actually realized i am finding my way to destroy you . 10 years ago a tragedy happened in 3 kingdoms that lost the beautiful friendship of 4 people. A promise made under a fortunate sky became unfortunate . A broken promise can turn someone angel to devil , make someone heartless , hopeless and dangerous . what will you do when hurting you is only way to protecting you on the name of friendship?