Can a Tree-Demon Extra Save a Cannon-Fodder Phoenix Queen?

Transmigration is often a wonderful thing. Transmigrating into a god is even more wonderful. But add the character for "tree" after "god"... A divine tree... Does that even count as a god? In his previous life, Lin Muyun was beaten into a vegetative state. That was bad enough, but after being reborn, he became a genuine plant person. In despair, Lin Muyun just wants to stay alive, and now he has to put his hopes in a cannon-fodder little princess who doesn't even survive ten chapters in the novel? Fine. As long as no one chops him down for firewood, they can eat whatever magic pills grow on his branches and use all the luck he's accumulated over a thousand years. Even getting saddled with a villain System and losing his divinity won't scare him! Who could have guessed that this cannon-fodder heroine would truly defy fate and become an unrivaled, glamorous empress...