100 Years can change everything.
She was Vongola's first guardian of Wuzhi. Together with the first generation, she conquered half of the world, but in the end she ended up with her heart broken and sealed.
100 Years later, she broke out of the ice and was reborn, growing into a blooming bloody rose.
In short, it is just to see how a man who has lived in the skin of a girl for 100 years teases and seduces a group of boys and girls...