Tetsuos hair got longer. Does that mean anything?
This happens twice in the manga and once in the anime. If you’re talking about the first time, the answer is no. It’s just for the show. At most it could be explained by normal hair growth. The second time it’s somewhat similar to 3-4-4 / 3-1-2. His hair was longer in the past and his body “remembered” that fact. Another example: Tetsuo’s arm began to bleed when SOL’s shot hit the ground right next to Miyako’s temple. That was his old wound.
