If you loved the chaotic energy and dark humor of 'That Guy', you might enjoy diving into 'No Longer Human' by Osamu Dazai. It's a classic Japanese novel that explores similar themes of alienation, self-destructive behavior, and the struggle to fit into society. The protagonist, Yozo, feels like an outsider in his own life, much like the lead in 'That Guy', but with a more introspective and melancholic tone. The book is raw and unflinching, making it a heavy but rewarding read.
For something lighter but still packed with biting social commentary, 'Convenience Store Woman' by Sayaka Murata is a fantastic choice. It follows a woman who finds solace in the rigid routines of her convenience store job, challenging societal norms in a way that’s both funny and thought-provoking. Murata’s writing has a similar sharpness to 'That Guy', though her approach is more subdued and surreal. Both books capture that feeling of being out of step with the world, but they offer different perspectives on how to navigate it.