Can I sell Genshin merchandise?

Excuse me, I was wondering if you could clarify something for me. The paragraph mentions "Genshin merchandise," and I'm curious if it's actually possible to sell such items. Is there a specific platform or marketplace where these goods can be listed and sold? Additionally, are there any legal restrictions or permissions that need to be obtained before engaging in the sale of Genshin merchandise? I'd appreciate any insights you might have on this matter.