The word "Masutomo" in the newspaper、I learned it for the first time。Beneficial insect、It seemed to be used in the same way as a pest.、There may also be “harmful friends”。
At first, I didn't like the feeling of the word "Masuyu".。This is because I felt like I was choosing a partner based on profit or loss.。But if you read a little more、An old friend has “ended up” becoming a good friend.、I took it as。probably、They probably tried to be mutually beneficial friends.。It was an enviable relationship.。