there are no packs you just go the event and spend by either 1x or 10x

Oh cool. I was just asking because if you hover over the dew drop itself it says, and I quote, "Get Dew Drops: Clear checkpoints in Survival Trial. (Daily Limit: 2) Participate in Arena (Daily Limit: 2) Participate in Team Instance (Daily Limit: 2) Buy Daily Packs (Daily Limit: 3) and the thread on this event from when it first launched (I would assume) https://forum-narutoen.oasgames.com/page/show-post-23412-1.html also mentions the 3 daily packs. But it doesn't surprise me if this is a typo or a mistranslation or something. Thanks for the response :) I just didn't want to spend on the event and miss out on these fabled daily packs as I don't know if they're cheaper, come with additional stuff, or as you have said don't exist lol.

The daily packs are in Hot Topics, but not worth it unless you've recharged that day. Even then they're not really worth it.

the 1 ingot one is worth it, the other two no

I have yet to be able to find the packs in hot topics? I already got the yes master outfit I was wanting, but for future reference can someone point me to where at in hot topics they are located?'

Edit: Wait are they the packs you buy for recharging? I am guessing during the event they have the dew drops in them?

i dont think they are in the packs just that once u buy the packs it auto gives you a dew drop

It is just the same three recurring daily packs that are there every single day, similar to "Try Your Luck."
They aren't individual packs for Great Tree event nor do they drop from the packs. It is simply buy a pack- get a dew drop. So if you already spend during events the first pack is always worth, even when no great tree is there, and the second is a net positive during tree too. If you're a big spender then, chances are, you either don't mind picking up the third pack regardless. If you're just going for the bare minimum it is not worth it as the chance for the coupon return to make it net positive isn't enough to be reliable.
Lastly if you are low spending or F2P then this obviously isn't an option and doesn't apply to you buuut at least the info is here.