go to in front of the library, and get the number for the handyman bros. You can trigger the questline for them by calling them. Also if you go to bed and walk out your room, it should trigger the piranha plant questline.
Finished Handyman bros tree house questline. Mostly by just sleeping through 7 days straight with short jaunts to see anything else triggered.
Now I just have "A new toy" hanging out with "Get very close with Linda" when her heart bar is fully red.
I checked the bathrooms (Upstairs and down) every day after sleeping to see if the piranha plant questline triggered. It has not. I'm wondering if I need to get the Handyman bros to a certain love level before it will trigger, so that's the next thing I will try.
Edit: Call and be told they are not available.... <sigh> Sleep some more days and Monday morning, go outside and call.. they answer and show up... grinding away.
Edit: Can call them 3 times a day. (at 10 pm it goes back to the unabailable messagE) Have to go through the stupid mustache dialogue every time to get to the Massage button, there is untranslated text from Mariolla as the heart button becomes active. At about half the love bar filled, a button Procini Mushroom becomes available. Go through that dialogue and be rewarded with a mushroom juice button. Giving them mushroom juice is a nice new sequence, which does not appear to give them love points.