Xbooru - 1boy 2010s 2017 2d 2d (artwork) animated skeleton ass back view black pants blue hoodie blue jacket bottomwear clothed clothing digital media (artwork) feet fully clothed hooded jacket hoodie jacket japanese text lying on stomach male male only monster on stomach pants pink slippers ribon22 sans sans (undertale) shoes removed simple background skeleton slippers slippers removed socks solo male text topwear undead undertale undertale (series) unseen male face video game character video games white background