"Tokyo Metro stamp rally 2016" is a large collection of mask riders! It is a fun event that goes around each station by stamping a masked rider stamp with different characters at each station with stamping.
For example, "Department Specter" at Ginza Station, "Decade" at Shintomicho Station, "Blad" at Mitsukoshimae Station, "Masked Rider J" at Kyobashi Station, and "Rider Man" at Higashi Ginza Station. Ningyocho Station is also a station with stamps. Hibiya Station near you is "Kamen Ridersin". All of them are outside the ticket gate. That's why we collected six stamps, so we secured the right to get the Tokyo Metro original sticker at the designated commuter pass counter.
The stations where you can get the original stickers are Shinjuku Station, Ikebukuro Station, Oji Station, Urayasu Station, and Senju Station on the Yurakucho Line, which are set far away from the city center. Tokyo Metro, I was impressed, "I'm smart!" What if all stations were achieved? If you are interested in this, please pick up a stamp book at Tokyo Metro and take a look. When I saw a parent and child holding hands together and participating in stamp rally, I felt smiling, silver.