Here's the thing about traveling. Yes, it's super fun but it can also be very stressful (speaking from experience). The more people you add to a trip the more stressful it can be because you have many different personalities conflicting with each other. Of course if you're okay with the occasional attitudes flaring up then who cares how many people are on the trip. I find the perfect amount of friends is 4, including yourself. My pros and cons will help explain why 4 is the magic number.
This is a blog about loving everything Japan. I share my knowledge, experience, and love of Japan.