I am trying to find the last time we saw Demon's Souls. But it seems to me that Demon's Souls 2021 will/has outsell/outsold Demon's Souls 2020.
Last info I found is week 47.
Week 47 2020
26./11. [PS5] Demon's Souls (Sony Interactive Entertainment) {2020.11.12} (¥7.900) - 2.882 / 21.489 (-85%)
30,000 since then.