Xbooru - 1boy 2010s 2016 2d 2d (artwork) animated skeleton ball and chain ball and chain restraint bottom sans bound bound ankles clothed digital media (artwork) hooded jacket hoodie jacket looking at viewer looking back looking back at viewer male male only malesub monochrome monster peng2 (artist) peng2 undertale (artist) restrained restraints sans sans (undertale) shackled shackles simple background skeleton solo solo male submissive submissive male sweat trembling trembling legs uke sans undead undertale undertale (series) video game character video games