The Bandit King Is in Power and the Emperor Bestows a Demon Concubine

One is a bandit given by the emperor, one is a wild grass, one is a good-for-nothing prince who has endless fun fighting with humans and heaven, and the other is a demon king who lives in this world and neither fights with heaven nor with others. Bandit accidentally encounters grass, and the demon king is destined to be obsessed with the prince. Tie and tangle, go round and round, finally the bandit king is in power, but the demon king is hard to find. I wonder if spring will return next year, will the weeds be able to regenerate?