One-Punch Man stacks its roster with fighters who treat speed as a weapon, and Onsoku no Sonikku sits near the top of that group as one of the series’ most technically demanding characters to capture on paper. This step-by-step tutorial on how to draw Onsoku no Sonikku covers the full figure across 12 steps, from the initial sketch to finished One-Punch Man line art.
What Makes This 12-Step Drawing Work
The tutorial runs 12 steps and delivers a black-and-white line art result with no color fill, so the entire focus goes toward clean, confident linework. The pose is the main challenge here: both arms raised overhead behind the head combined with a wide-leg stance creates an asymmetrical silhouette that requires careful attention to balance and proportions across the full body. If you slow down on the torso and arm angles early, the rest tends to fall into place more smoothly.
Sonikku’s Key Visual Features
- Long hair, bangs partially covering the face
- Sharp, narrow eyes with intense expression
- Sleeveless top with horizontal waist wrappings
- Both arms raised overhead behind the head
- Wide stance with legs spread apart
If you want more One-Punch Man practice, the guide on Speed-o’-Sound Sonic covers a closely related character with overlapping design elements worth comparing. Garou in Motion is a good follow-up for practicing dynamic full-body poses, and the Metal Bat breakdown goes deep on outfit and pose construction if that is where you want more detail.
Reading the Step Colors in This Guide
Each step uses a simple three-color system to show what is new and what came before:
- Red Color: lines added in the current step.
- Black Color: lines completed earlier.
- Gray Color: base sketch for structure.
How to Draw Onsoku no Sonikku: Step-by-Step Tutorial











Finished the Sketch? Share It
Once the line art is done, drop your finished drawing in the comments below. Seeing how different people handle the raised-arm pose and the hair details is always worth looking at. New tutorials get posted to Facebook and Telegram as soon as they go live, a new YouTube video based on existing guides goes up every day, and Pinterest stays updated regularly if you prefer saving references there. For more One-Punch Man work, check out Tatsumaki or the full-body King drawing. If you want to support the project, the Patreon has unique hand-drawn coloring pages available that you will not find anywhere else on the site.