in search for a happy ending

Azima, a proud and trouble-seeking girl who never learns from her mistakes, wishes for a second chance to make amends after her innocent sister got involved, stabbed and died in a fight. It seems like the god granted her wish, as she and her sister are transported to the world of a famous game in their own time. Azima knows nothing about the game's story and only plays it at her sister's insistence for once. Could her limited knowledge save her sister from a different bad ending?