Dear Philomel-san
Greetings.

The heat of the summer months is wavering at last. The days are getting cooler and soon trickles of snow should be sprinkling over the mountain tops.
I am sorry I haven't written for a long time. How have you been? Thankfully, all has been well here.

I've been emrboidering on some old clothing I found in the temple. I think it will make them look much better.
Outside, there's a small rabbit that has taken a liking to the area around the temple. I see it occassionally as it's looking for food.
I apologize for my unusual method of sending a letter, but I don't know of any other way to send letters across worlds.

Please send my regards to your co-workers. Now that winter is upon us, please keep yourself warm in the following months.

Sincerely,
Kurt Howell

[Yes, this is written in Japanese formal style. While it never showed him writing a letter in-game, a lot of his polite mannerisms revolved around what was considered polite in Japan, so I suspect he would do the same with letter-writing. He's using a fairly standard structure for this letter.]