The 'Koichi Window Edits' meme stems from a scene in the anime JoJo's Bizarre Adventure: Diamond is Unbreakable, featuring the character Koichi Hirose peering through a window with an intensely curious or shocked expression. The meme gained traction in the JoJo fandom as a versatile exploitation template where the contents of the window are replaced with various surreal, terrifying, or humorous images. It highlights Koichi’s reputation as a reliable guy who often finds himself in bizarre situations. Fans use this template to depict Koichi witnessing everything from cursed internet images to other pop culture crossovers, making it a staple of JoJo reaction culture.