Essentials
FamilyMart
1-chōme-22-2 NishiikebukuroNearest convenience store
Parks & Nature
Shinjuku Chuo Park
2-chōme-11 NishishinjukuShinjuku central park
Sightseeing
Tóquio City Hall
2-chōme-8-1 NishishinjukuMetroporitan government. You can go up free.