Shinjuku L Tower
The  is a skyscraper located in Shinjuku, Tokyo, Japan. Construction of the , 31-storey skyscraper was finished in 1989. It was built by the Japanese construction firm, Shimizu Construction Company. References 
https://www.emporis.com/buildings/105047/shinjuku-l-tower-tokyo-japan

Skyscrapers in Shinjuku

Office buildings completed in 1989