Hmm, interesting observation, TS! Both Ayaka Shinozaki from "My Instant Death Ability Is So Overpowered" and Yuuki Asuna from "Sword Art Online" are indeed popular characters, but they are designed by different artists.
Ayaka Shinozaki is known as an anti-hero and one of the survivors in her series, while Yuuki Asuna is a main character in Sword Art Online with her own unique design.
It's not uncommon for anime characters to have similar features due to the artistic style of anime. However, each character usually has unique characteristics that set them apart.