“Sedori” is a business that buys secondhand books, CDs, DVDs, games, videos such as book off at a low price, and sells high on the Amazon and Yahoo auctions to make a profit. 
In the past, it was only possible for people with deep knowledge, such as dedicated secondhand bookstores, but with the advent of portable tools that can easily check commodity prices, ordinary people such as housewives and students can now easily enter. 

We will introduce the merits of “Sedori”. 

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・ A high degree of freedom 
This is a common benefit of the internet business, but it is also quite flexible. 
You can go to stock only at the time of your convenience if it is time for used bookstores, such as holidays, work return, lunch breaks, shopping, etc. 
It is safe to send out the product on the 2nd and 3rd every time when it is convenient. 
It is not tied to time like a part-time job. 

If you set a target of about 50,000 yen a month as a side job, it would be possible to achieve in one hour on your usual way home from work or one hour on shopping. 
If you get used to it, it is said that 100,000 will go at the same pace. 

・ It 
is a plain advantage that you can use the product yourself, but you can use your purchased books, CDs, DVDs, etc. yourself until you sell them. 
When dealing with books, you can read various books. 
It is quite fresh because I can get books I usually do not buy. 
Isn’t it unbearable to book lovers?