How to cancel Shinkenzemi / Kodomo Challenge (2026, step by step)

Shinkenzemi / Kodomo Challenge can be cancelled by phone in 3 steps. Use the official link below to go straight to the cancellation page.

1. Open the page below.
2. Find your course and call its listed number (9:00–18:00).
3. Call by the 1st of the month before the issue to stop.

Open Shinkenzemi / Kodomo Challenge's cancellation page

Last checked: October 4, 2026 · Official sources: benesse.co.jp/zemi/member/cs_taikai.html, faq.benesse.co.jp/faq/show/8708?site_domain=sho