Roronoa Zoro (Zorojuro)  is the first mate of the Straw Hat Pirates, and Killer is a notorious pirate from the Kid Pirates. Both are known for their exceptional swordsmanship skills, and their battle is highly anticipated by fans of the series.
The poster features a striking image of Zoro with a Demon smile Right before he uses his 3 Sword Style Purgatory Onigiri against killer from Kid Pirates.
 
The Wano Smile Poster featuring Roronoa Zoro (Zorojuro) depicts the popular swordsman of the Straw Hat Pirates with a maniacal grin and tiger-like stripes across his face Chapter 937.