Solitary Favorite: the Rebirth of the Prince in the Beginning of Time Travel Without Teasing

When a time-travel beautiful girl meets a reborn dog-licking prince, it's like silky milk plus strong coffee... Ah, no, pretend I didn't say that. At this time, the heroine was wielding a 40-meter machete: "As long as the supporting character dies quickly, there will be no sadness, only love!"