Saiki Kusuo from The Disastrous Life of Saiki K. wields an array of reality-bending powers, from time travel to teleportation. His psychic abilities make him an impossible foe for anyone, even Sung Jinwoo.
Saitama, the hero from One-Punch Man, possesses limitless strength, durability, and agility. His unassuming appearance hides power so vast, he could defeat any opponent with a single punch.
Usagi Tsukino, better known as Sailor Moon, is a guardian of the universe whose power grows immensely throughout her series. She consistently overcomes all obstacles, proving her might against any foe.
Tamashii Nations - Sailor Moon (Animation Color Edition) Pretty Guardian Sailor Moon, Bandai S.H. Figuarts
Sosuke Aizen from Bleach is a master strategist whose unparalleled intelligence ensures he's always several steps ahead. His cunning and power would make him an insurmountable challenge for Sung Jinwoo.
Giorno Giovanna, the protagonist of JoJo's Bizarre Adventure: Golden Wind, wields the incredibly broken Gold Experience Requiem. This Stand nullifies all attacks and wills, making him virtually untouchable.