I was surprised that I got a mail from my boss, asking me "host surrogacy".

- "host surrogacy" is a hot topic just now.

- I am a man from the viewpoint of sex and gender.

- It seems to be difficult to have a baby by present technologies.

When I came to think many excuses and reviewed the mail,

I found the word "substitution" in my mail.

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I am afraid that it should be a job related disease.