Sunsyscon's plans for people who live in Japan, what it takes to sign up, and the real monthly cost including setup fees.
Heads up: Sunsyscon's official application and support are in Japanese only, as far as we could confirm. You (or someone helping you) will likely need to read Japanese to sign up.
| Plan | Data | Monthly (from) | eSIM | Setup fee |
|---|---|---|---|---|
| Sunsyscon 3–120GB | 3–120GB | ¥4,278 | No | ¥5,500 |
| Accepts foreign residents | Yes (stated officially) |
|---|---|
| Residence card as ID | Yes |
| Min. remaining validity | Not specified by the provider |
| Support language(s) | Japanese |
| Credit card | Not accepted |
| Debit card | Not stated |
| Bank transfer | Accepted |
| Convenience-store payment | Accepted |
| Setup cost | ¥5,500 |
| Minimum term | 6 month(s) |
| Cancellation fee | Not specified by the providerConditions apply — see official source below. |
The exact list of accepted ID documents is long and partly Japanese-only legal text, so we link to the source rather than translating it: Sunsyscon official.
Yes — Sunsyscon accepts residence-card holders (per official pages). A residence card is accepted as ID. That's a separate question from credit screening for the line contract itself: its official site states there is no credit-history check for the line contract.
Yes — Sunsyscon officially offers at least one non-credit-card payment method (bank transfer, debit, or convenience-store payment). See the payment table below for specifics.
No — the Sunsyscon plans we track are physical-SIM only.