Check-In at the Beginning: Sword Art with Grass Characters

I traveled through time and became the crown prince of the Tianxuan God Dynasty. Just because I secretly let go of the enemy's saint, I was dethroned from the throne, thrown into the cold palace, and imprisoned for life. Others think I'm finished, but only I know, I have a sign-in system! Sign in in front of Leng Gong, and start with the sword battle with cursive characters; Signing in in the palace hall, the magic of mending the sky is added; Sign in at the Queen Mother's Palace and get the God of War picture album! I just wanted to sign in silently in the cold palace until I was invincible in the world. But who would have thought that the saint I let go is now the empress of an enemy country, using all the strength of the country to attack my court, just to save me? Looking at the thousands of troops approaching the city, I picked up the tea cup and smiled lightly: "Do I need your help? Today, it's my turn to take action." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.