2291. Why do these five characters all seem so reflective? 罪 突 穴 貫 票

They all look the same when reflected in a mirror!  

罪  ZAI, tsumi - crime, sin, guilt

突  TOTSU, tsu(ku) - thrust, poke, strike

穴  KETSU, ana - hole, cave

貫  KAN, tsuranu(ku) - pierce, carry out

票  HYOU - paper slip, vote, ballot