Five Star Gift Ideas

Here are some potential gift ideas based on your boyfriend's interest in Japanese culture:

1. A set of high-quality Japanese tea cups and a traditional tea ceremony set. You can also include some Japanese tea leaves that he can brew and enjoy.

2. A Japanese-style fountain pen set for calligraphy or writing, along with a book on Japanese calligraphy so he can practice and hone his skills.

3. A beautiful Japanese-style bonsai tree that he can take care of and watch grow over time.

4. A collection of classic Japanese films on DVD or digital download, along with some Japanese snacks like Pocky sticks or green tea mochi.

5. A framed piece of traditional Japanese artwork, such as a ukiyo-e print of famous landscapes or characters.

6. A trip to a Japanese garden, a sushi-making class or a traditional Japanese hot spring (onsen) experience.

I hope this helps!

Or you can get him a star map with the date of your anniversary.