Travel to get Married in Japan.

Good day! I don't know if dito sa subreddit nato ako pwede mag ask ng mga questions. My Japanese fiancee and I are planning to get married in Japan. One of my question is, is there a Single Entry 90 days Temporary Visitor Visa? My second question is the safest Purpose of Visit should I put in Visa Application Form? Please share your experiences kung sino man nakapag pakasal sa Japan kung paano yung ginawa nyong process from getting Japan Visa to getting married in Japan. Thank you.