Growth
She started getting some advantages in the fight against her brother after creating this unique summoning ability.
It was a surprise for them because Rea won against him for the first time. And this was the start of Rea's counterattack.
One win after another gave her a lot of confidence.
Eventually, she came to her father, saying, "Honorable Father. Thank you for always supporting me. I ended up making you lower your head…"
"Don't say something like that. I can do everything for both of you… You know what?" The Sword Saint showed his black sword and said, "In the past, this sword was made to kill.
"I kill all sorts of monsters and even people. Red blood, green blood, this sword has been stained by all the colors and finally reaches its last color, black.
"There was only one purpose for this sword in the past. It's to kill so that I can continue going upward. However, this sword has a second purpose after both of you were born…"