These job ads specifically mention “freelance” in the job description.
Take a look to see if any intriguing opportunities exist for you to use your Japanese language and/or cultural skills. There are typically less freelance options than other categories, but the ones that get posted get snapped up pretty quickly.
A job board powered by Ikigai Connections, a company that bridges the gap between companies and job seekers who appreciate Japanese / English language and cultural skills.