@Zutto good info my friend.
IMHO it is often better if you set the price.
I have a standard of 50,000 for a date that includes dinner and hotel time.
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I might be jumping in late, but my experience is do NOT ever set the hard # over the initial message exchanges. You don't know what is in store, both good and bad. Always set a min to max range based on "AGREED" expectations. Sugar dating is a business transaction. Let me say that again, it is a business transaction. Some if not most sugaring girls acknowledge this and will abide by its rules.
Sugaring is not Nampa or something dumb, you can call out the girl if she doesn't perform but as a SD, you need to set the expectations very clearly and detailed. That is your role. If you want to see her piss and shit, then say that. If you want to wear a halloween costume as Freddy Krugar, then say that but be very clear and you will almost always get what you want.
The reason I say this is you can come out with a really good girl for what you may think is cheap, against your expectations (aka what I call rules). Conversely, if you stick to your rule boundaries, you will almost never get burnt and walk away with something of value. If you play the game in a clever manner, you will have 1-2 extra buddies waiting 30 & 60 minute intervals around the same station (NEVER the same station) and can give a quick "dotta-kyan" excuse if it goes well with plan A. Not sure if that made sense, but play to your own financial/time/expectation boundaries and you will always have a good time. (PS. Daytimes are harder pulls for this type of maneuver, but can be done with different site tactics, but maybe that is too much brain power for this thread.)
** Yes, on sugardaddy.jp you might get some bad karma but if you have a decent profile with decent looking pics, you will always come out on top.
Ps. Some of the most amazing sugar pulls I have done here in Japan is having girls from outside of Tokyo (Shizuoka, Kyushu, Osaka, Okinawa, Hokkaido, etc.) come in for a sugar visit. You pay the plane/Shinkansen and you get exponentially better service, superior attitude and fun than the tokyo-sugar-ite. Sorry to those Tokyo SBs but quoting Trumpets, "it is what is IS!". This works with non-Japanese too, Filipinas and Brazilians are even more amazing than a super workout. $exercise.
The "thank you" feeling plays a HUGE factor in you bringing her to the big city. Put her up in a decent hotel, do your deed and buy her some nice gifts and take her around, hopefully in your nice luxury car and she is YOURS. Try it and see.
Play well, be healthy and safe and see you out on the serengeti.jp!