Neutrino Telescope Array (NTA) can realize the ``multi-particle'' paradigm with combined detection of PeV $\nu$'s and $\gamma$'s from an accelerator provides indispensable identification of the location and the physics mechanism
$ p + \gamma \rightarrow \Delta^{+} \rightarrow \pi^{0} + p, \ \pi^{+} + n; \, p + {\rm nucleus} \rightarrow \pi^{\pm,\, 0} + X, $ which can clearly reveal the long-standing unresolved origin(s) of cosmic rays.
To enhance the sensitivity for ES-$\nu_\tau$'s around 1~PeV, four NTA stations will be served on Mauna Loa at 3000 - 3500~m asl, which watch the air volume surrounding the mountain including the surface.
Mauna Loa is the world largest volcano suitable for detecting CE and FL light from $\tau$ ASs with both short and long decay lengths and $\gamma$ ASs.
Therefore the NTA neutrino sensitivity can be fairly competitive in the wide energy range of PeV-EeV.
Fascinating is also the detection of $\gamma$-rays with the large zenith-angle (LZA) ethod for the galactic bulge has the trajectory in the southern night sky with LZA more than 50~degrees, corresponding to the detection threshold energies higher than 16~TeV.
We confirm the LZA method is promising particularly for the PeV $\gamma$-ray detection.
Once the northward NTA units detect $\nu$'s from the same $\gamma$-ray objects observed by Ashra-1 LCs,
we can argue, more concretely than ever, the physics of the occurrence of $\gamma$-rays and $\nu$'s.