forgiveness sans.despite being a sans who has an eye patch,he's actually a really nice guy.his worlds frisk couldn't kill any him,but when they finally found the strength to push themselves and reset,so with one final slash that sans was willing to accept a hit from,frisk reset the world before his death,but at one,small,minor cost.this sans forgave frisk,and they've been friends ever sisne,timeline after timeline,and frisk never did another genocide after that.