Uchiyama
The cut-off work around OMC and OMMT was certainly carried out at midnight on February 29, 2016.
When I looked around OMC, I found traces of cutting the edge. I tried to push a needle (千枚通し) to check the bottom of the dustproof paint. If it's a concrete floor, I can not pierce the needle, but I was able to pierce it deep into the slot. Therefore, the concrete seems to be cut. However, even if I pierced it deeply, the resistance I received from the needle did not change, so I felt the possibility that dustproof paint was entering deep into the slot.
