Don't Cross a Vampire Princess! Her Crush Was Served at the Table Episode 14

Sherly Chiles, the 200-year-old youngest daughter of a powerful vampire family, hides her identity to pursue her human crush, Galen. When Galen steals her banquet invitation and bullies her with his friends, Sherly reveals her true status and teaches them a lesson. Growing into her power, she regains her adult form and meets a mysterious new love interest, opening a fresh chapter.