Another episode, another totally optimistic and happy-sounding episode title. Last time on Casshern SINS: SPOILERS ARE NOT TOLERATED. ONLY DISCUSS EVENTS RELATING TO THIS EPISODE OR TO EPISODES ONE-THREE HERE. Otherwise, there'll be robots wanting to devour YOU. Opening: "Aoi Hana" by Color Bottle: http://www.youtube.com/watch?v=bdOubGFnfG8 Ending 1: "Reason" by KANA: http://www.youtube.com/watch?v=EVX7G3Vz_Bw (bonus creditless version) Enjoy the episode! Only Toonami.