Disclaimer: image from asia.nikkei.com
Boy, that will be really a first and badly needed. Fast.
An agreement with Japan to build the very first Metro Manila subway is in the works with the Duterte administration to help the Manila congestion. This 25.3 km line will be from Quezon City in the north to Taguig City in the east.
This project have an estimated cost of $4.6 billion which will come as an economic assistance from Japan. As for this deal, it is expected to be finalised in the coming Asean meeting in November.
http://asia.nikkei.com/Politics-Economy/Economy/Japan-to-finance-4.6bn-Metro-Manila-subway?page=1