Booked an apartment on booking.com – they want pictures of my passport now

Hi!

I just booked an apartment in Asakusa for 21 nights, now I got a message from the Hotel / Host:

DearXXX

Thank you for booking my house.

According to the new law established by Japanese government, I must ask you to prove the following details before your check-in.
This process allows me to operate as a host in Japan legally.


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== Important ==
You can send guest information form through the AirBnb app from your smartphone. If possible please send from the app as it will speed up the process.
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1. Full name of each guest staying (including children)
2. Full home address of each guest
3. Occupation of each guest
4. Photo of everyone's passport page that shows the name, nationality and passport number.
(All face photo page )


If you feel uncomfortable giving me the information above, please refer to this official website as it states the necessity of these information.


Japanese Government Website:
https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000130600_00001.html


Airbnb Wabsite:
https://www.airbnb.com/help/article/2274/what-should-i-know-about-booking-a-home-in-japan?locale=en

You can safely click the link below to fill in the required information.
Please let me know once you have submitted it. Thank you!

https://master.servebotai.com/passport?callBackId=xxxxxxx&roomNum=xxxx千束1K
I appreciate for your understanding and support.

This obviously was pretty weird to me, since I 1. booked the room on booking.com, not airbnb and 2. i already booked 2 other airbnb's for september and non of them required that.

I couldn't find any information of "servebotai" and also no reviews of the hotel / apartment

Does this actually exist and is safe?