Hexagonal Lock Seal

When Sarutobi obtained the Six-Tails Chakra Mode, his original seal evolved into this one. Though it retains its name of "hexagonal", no hexagon shapes appear on the shroud. Instead, a numerous amount of thick black lines appear, connected to pointed, lock-like fixtures, hence the other part of its name. He also gains black circular markings on his wrists and palms.

Since Sarutobi and Saiken are on good terms, the seal merely serves to keep the beast in place within him, as it is seen to roam free within his subconscious. The new seal overrode the cursed seal entwined in the previous seal by D, however, Yukimaru's mark of the Flying Thunder God Technique remained, due to the fact that the seal never goes away.