“cape / Saitama” in Japanese is 埼, read sai (さい). It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 埼玉県 (Saitama).
What does 埼 mean?
埼玉県に行く。
Same sound, different character — the classic trap. Compare them side by side: