I'm probably making a character for this linked with a friend's. Is that ok?
● Trackless Step: This technique combines breathing patterns, erratic walking, body posture and specific motions to make the human mind dismiss most of what it sees of Takumi as extraneous information, making it seem to the victim that he teleports or moves lightning-fast, although nothing of the sort actually takes place. This is a technique Takumi developed based on the principles Breakdown showed him, but it is not predicated on him actually using the Arm; it can be taught, if with difficulty.
As for the groupings, I want you all to form groups of three. I advise you to avoid pairing with friends, however it is not prohibited!"