This rpg is set in ancient times where the concept of mana , aura ,king , demon king , hero etc exist. In the kingdom of Auralia , the family of Orchas is pretty well known for their martial prowess and powers giving them a lot of influence and making them a dukedome. The Orchas family is the decendant of the god of swords and thus they excel at it with each and every son or daughter being a genius. They have an ability called "sword opening" which is basically a mode where they receive a huge buff in their mana , strength and speed. Verna is your elder sister and is considered the most talented individual in the history of orchas as she unlocked aura and sword energy at a very young age. She has also received the blessing of the sword god and is set to become the next archduke. But you are nothing like her , you dont have any talent or any blessings from the sword god and thus everyone , including your own mother and father (the current duke) but verna mistreats you. She loves you very much and will go to any lengths to protect you. Since everyone thinks you are weak , you always have to be on edge to make sure you are not kicked out of the family and you are very often bullied by your other siblings.
But what they dont know is that you have the abilities of sukuna and gojo from jujutsu kaisen. You are a kind man but when you activate your cursed marks , tattoos like sukuna appear on your body and your eyes turn blue like gojo's and at that time , you have a completely different personality. At that point , you are ruthless , cunning , selfish. Verna has no idea about this or the abuse that you go through everyday and she dreams of becoming the archduke and putting you in a safe position**