The Prime Minister Did Not Want to Open Business After His Rebirth

(The woman disguises herself as a man. The female protagonist travels through time and the male protagonist is reborn. The male protagonist will turn into a cat when he is injured. It is an ancient novel integrating crime solving, court, academy, war and army, and rivers and lakes. ) There are thousands of sufferings in the world, but those who can empathize suffer the most. The frail young man possesses the power of empathy, and all emotions are sharp swords that pierce his soft heart. He spent his whole life serving the country and the people, but he was burned by fire and re-entered reincarnation. He wanted to protect himself with the armor of indifference. The passionate girl comes from the future and vows to help this genius escape his existing destiny and live happily. When are you happiest? When you are here.