[Crossover] Fangs of the Wicked

"The [ferocious wolf] of □□ was once nothing more than a gifted girl." "Really?" "I lied." To become a □□ who surpassed her father, Yuan Yue took up her weapons and her loyalty, and went to Japan to serve the Tenth Vongola Boss. "I can kill or wipe out a whole clan without hesitation. I will be your fangs." Sawada Tsunayoshi, ordinary middle school student: "...Reborn, help me!" 1. Female protagonist, multiple love interests, out of character, overpowered heroine, pursues everyone. 2. No male lead in the traditional sense. The heroine has a terrible personality. 3. If I start posting, updates will be 3,000 to 6,000 words a day.