Step #1
First commence the tutorial by making a circle, two lines inside the circle & shape for the upper body.
Step #2
Draw outline for arms & make eight circles.
Step #3
Make outline for face.
Step #4
Make eyes & lips.
Step #5
Make shirt collar & tie shape as shown.
Step #6
Draw shirt.
Step #7
Make hands, fingers & arms.
Step #8
Make two more arms.
Step #9
Draw eight legs.
Step #10
Make teeth & six flat rectangles over the sleeves as shown.
Step #11
Finally, make necessary improvements to finish.
How to Draw a Koro-Sensei from Assassination Classroom with Color Pencils [Time Lapse]