Hand Jumper is a thriller manhwa that follows Sayeon, a young Aberrant- those with supernatural abilities- as she studies the rules of her dark world and formulates elaborate strategies to rise to power. Why? To restore law and justice to the world, of course. Yes, she was just an innocent girl with pure intentions. But look closely, because when the light catches her glasses just right… Something about her feels off. Previously in Hand Jumper, cell four encounters Yesol, a young Sea Wolf captain with immense power. Will they lose the fight… and will Sayeon be okay if they do? Let’s dive into the rousing Hand Jumper Chapter 90 to find out!
Hand Jumper Chapter 90: A Tailoring Problem

Hand Jumper Chapter 90 begins as memories of her past with Yesol flash across Ryujin’s brain in full technicolor. Soaring, after Juni flung cell four away from the scene, with one hand holding her baseball cap down, Ryujin lands hard onto the rooftop of a building. She remembers that Yesol’s parents had been murdered by the Corps- and now she was a part of them. She nearly retches after the impact, while the rest of the Aberrants land on the roof around her.
Sayeon, despite not excelling at sensing essence, picks up on Ryujin’s inner turmoil. She silently wonders what had rattled the usually unbothered Aberrant. However, her concern quickly transforms into anger- if it wasn’t for her and Juni, she’d have been able to take Yesol down! ‘All those points,’ she thinks morosely, ‘Right down the drain, because of you…’
Abruptly, Sayeon slaps herself out of her negative train of thought– she wouldn’t blame anyone but herself. Ryujin simply hadn’t trusted her enough. She hadn’t given her a reason to. This was her fault. ‘I need to be better,’ Sayeon thinks with determination.
Listen to Your Video Game-Obsessed Elders
When Sayeon tries to talk to Ryujin, she leaps off the roof and starts on the way back to headquarters without her. Sayeon, baffled, jumps after her while Min follows suit. Lastly, Iseul and Changsub (both deathly afraid of heights) remain on the roof. He watches Sayeon bound away, remembering the bloodlust he’d sensed from her before. He resolves to reprimand her for scaring Changsub… but then remembers that she only listened to her superiors. With a deep breath, he leaps off the edge and into the darkness below.
Meanwhile, her superior, Juni, lies sprawled in the alley in front of Yesol. “Neither of us wants to fight… but here we are,” Juni, missing both arms and a leg, says with a smile at the exhausted Aberrant in front of her. Yesol angrily accuses her, a definite red tie despite the blue fabric tied around her neck, of being foolish by consciously joining the ‘greatest eradicator’ of their kind and not expecting a fight. Blue strings of essence slowly entwine around the severed limbs of Juni as she explains that all she wanted was a peace card- a government-issued document- to play online games. Masterfully, the ribbons attach Juni’s body parts back to their joints, concluding Hand Jumper Chapter 90.
What’s Happened So Far?
Previously in Hand Jumper, cell four fights Yesol, a powerful Aberrant, on Sayeon’s order not to stand down. Rewinding time multiple times to crack the code on her weaknesses, Sayeon gathers valuable information on the Sea Wolf captain. Information valuable enough to defeat her.
Sayeon sends Iseul, the most compassionate of them all, away to locate Juni and grabs hold of Changsub, a small boy about whom Yesol cared deeply. Using him as leverage, she positions a knife to the boy’s neck and decides to kill him (once at least, she couldn’t fake the threat) and then rewind time. According to the black-and-white gears of her brain, it wasn’t counted as murder if time was rewound.
However (thankfully), Ryujin quickly intercepts Sayeon’s plan and begs her to stop her madness, causing Min to rush to the team leader’s aid. When Isuel returns with Juni, the superior officer immediately neutralizes Yesol and heavily reprimands Sayeon. When Sayeon doesn’t listen to reason, Juni entangles the cell within her ribbons and tosses them away from the site.
Meanwhile, Yesol recognizes Ryujin as the girl she’d grown close to at the Concordat, her home before the Sea Wolves. She’d been led to believe that the young girl was dead, but here she was. Alive… and in uniform. Long ago, Ryujin had promised- “a knight’s promise”– to find Yesol even after their separation. Before Juni flings them away, Yesol loudly yells out her name and vows, “I swear on that name that I’ll come find you! It’s a knight’s promise!”