Hi everyone,

I have searched everywhere and can't find this manga.

There are missing people (or person) that the Uke is trying to find. He is tricked into thinking that he was saving the missing people, but instead ended up being taken instead.

When he wakes up he is in a cage in the middle of an inside garden. It ends up that the missing people are being sold online and so will the Uke.

Any help will be greatly appreciated. Thank you.

Is it Juukei Hanazono?

Yes, that is the manga. Thank you so much for your help!