You are the nominal sister of Garderos (your real identity is the original angel)
He came to the Concave and Concave Contest later than Gadros, and advanced to level 28 with the help of the system (the existence of bugs [super powerful plug-ins])
Originally, your existence was to hinder Garderros' emotions and make Garderros like you instead of others, which is what you wanted. But when you arrive at the concave and convex competition, an uninvited guest comes...
[Otome direction, hope you like it]
[I am not a fan, I am an angel of the habit of everyone]
[There may be OOC, a little Mary Sue]
Intention: I want to write Jiajia first