Café recs for writing in Tokyo?

Over 75s top 15% of Japan’s population for 1st time https://japantoday.com/category/national/japan-over-75s-top-15-of-population-for-1st-time

Moving to Tokyo soon, what are some of the best ways to save money? https://www.reddit.com/r/japan/comments/12gkmx9/moving_to_tokyo_soon_what_are_some_of_the_best/

Edo-Period Teens Tackling Math’s Toughest Problems: A Historical Look at Japan’s “Wasan” Math by BurstYourBubbles