Bana flower, also known as Manzhu Shahua. Legend has it that this kind of flower only blooms on the other side of the Forget River, and the flowers and leaves never see each other. Just like a pair of lovers who love each other but can never meet each other, the pain is not something ordinary people can bear. And Sawada Tsunayoshi was already familiar with this kind of pain, and the source of this pain came from that person—Vongola I—Giotto Vongola.