You might think pen pals are so popular these days, but between you and me, it's actually surprisingly useful! Even if a woman is Kokoro at first, you can get a sense of her personality from her letters, and you can do it at your own pace, so she feels at ease. Married women who exchange letters are really lonely, so if you give them proper advice, they will trust you and open up to Kokoro. Even though it's your first time meeting, you can feel like you're in a relationship - pen pals are the best!