Where is Mercari located?

Excuse me, could you please clarify for me the location of Mercari? I'm quite interested in understanding the geography behind this company, especially given its growing popularity in the e-commerce industry. Could you perhaps provide me with the specific city or region where Mercari is headquartered? I'm eager to learn more about its origins and how it has managed to expand its operations so successfully. Thank you in advance for your assistance.