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CLASH!
A gargantuan figure descended from the skies in the form of zapping yellow thunder, reaching the floor and materializing from the thunder itself.
Vretrion's crimson eye glanced at the figure emerge as the sparks of electricity covered her entire chocolate-colored body coated in golden tattoos and firm muscles.
Her golden horns were erected like a large crown over her head, and her blazing golden eye released sparks as it looked over Vretrion from above.
Her long and spiky hair seemed to be as hard as metal, and her body was only covered by leather clothes over her breasts and crotch.
She held a gigantic golden club covered in spikes, the size of a small mountain.
Her entire body exuded an aura of spiritual thunder… distorting space itself through her sparking electricity.
"Hello, Vretrion, long time no see… I guess you don't even remember me anymore, don't you?" she asked.
Check "The Protagonist's Sister Is Actually the Strongest"!