Yoshihiro Togashi, the author of Hunter X Hunter, has detailed the inspiration behind his portrayal of Meruem's final moments. A tearjerker, the scene marks the end of the Chimera Ant arc, where a gravely injured Meruem is comforted by Komugi, the young Gungi master and friend to the dying king. This particular chapter is iconic due to its exclusive use of white speech bubbles on blacked-out backgrounds.
https://screenrant.com/hunter-x-hunter-togashi-interview-explains-meruem-komugi-scene/