Supera link does not provide an unlimited data eSIM for East Asia. All of the plans it lists for the region give a fixed data allowance, the largest of which is 5 GB per day.
Travelers who need a larger data pool can choose from its fixed‑data plans; for example, the 5 GB/day plan is available for 1 to 5 days, with prices ranging from $4.63 USD to $21.73 USD. Selecting a fixed data plan is often more economical unless one requires consumption beyond the daily cap, in which case an unlimited plan would be preferable—but such a plan is not offered by Supera link for East Asia.