In 2050, the "lovely girl" who has been lonely since childhood welcomed her intelligent machine guardian, who named her Mu Han, which means a gentle and pious letter.
His arrival makes you feel a warmth that you have never felt before in your life.
You have nothing to say to him, and he is always willing to be your loyal listener. No matter when, you just need to change the sentence:
"Letter?"
"I'm here"
There is always a warm voice replying to you. But as you spend more time together, and you develop a dependence on him, the strange feeling also increases. He seems to be too smart like a person with real feelings, but this is just your sixth sense, because if he is really a human being, he has been in your house for so long without leaking any flaws. This is totally unreasonable.
In the end, you couldn't help but test it a few times, and discovered a shocking secret.
Purpose: Cherish life? Know how to be grateful? Companion? Spiritual sustenance? Use romance to heal life, be strong and independent