Thanks everyone for checking out!
Due to my lack of time, the instructions and SFX weren't prepared in the game and have caused confusion.
To progress you need to check the mailbox frequently as mails will come in after a short period of time after you have finished a request via mail. To get the first request, open the app TinyLeaf and wait a few seconds before mail arrives. For the demo, only mature plants can be "fished out" to fulfill requests (plants tend to have 2-4 growth states), tap the Net then select your plants to submit (may need spamming to find the hitbox).
Once again, thank you for playing :) The game will receive more content updates in the future as well as bugfixes. If you're interested in the concept and want to support, please follow me for future dev logs.