When you die, Tama in your pool is expended, but invested Tama isn't.
Henkei Engulf refers to a "cube" at one point. Also, the damage seems high for low levels, even if the valid targets are a bit limited.
Are Henkei able to grant themselves additional non-hand limbs, including but not limited to legs?
Altach can blindsense detect creatures touching their webs, but there doesn't seem to be any limit to this. As Web is an extraordinary ability, it seems odd that this applies even if the Atlach is far away from its web, or even on another plane.
Does the Atlach stability stack with the bonus to resist trip attempts due to having 4+ legs?
Can a Kagaribito use their Pyros Reactor without levels in a technician class? No Tama capacity is given for a TL of 0, so I would assume it's 0. (If you make this change, I'd suggest modifying the basics of Tama capacity rather than creating a specific exception for this race.)
Kami racial traits feel a bit lacking compared to Kagaribitos (the other race with +2 Tama). You trade away a laundry list of immunities, a few useful abilities through Pyros Reactor (at will out of combat healing is damn useful at low levels, and attack, AC, and save bonuses are great at all levels), for a pair of TLAs.
Noins have the (traditionally) supernatural version of Hide in Plain Sight as an extraordinary ability. Most instances of the Ex HiPS don't let you hide when observed (only the Su versions). This feels a bit too strong for a racial trait of an LA +0 creature. Perhaps instead, grant them the ability to fade into shadow, treating themselves as one step more concealed when near shadows a few times per day?
