He never thought that a drama like rebirth would happen to him. As hard as it is to believe, it did happen.
Giotto was reborn. As he learned about the new world, he was even more shocked that the Vongola he created could continue hundreds of years later even after being mercilessly destroyed by his old enemy Bai Lan. His mother was an ordinary housewife, and his father was Vongola's outside consultant. He would be Sawada Ieyasu, the tenth generation leader of Vongola. Many years later, he unexpectedly gained a younger brother - Sawada Tsunayoshi.
"I swear in the name of Sawada Ieyasu, the tenth generation leader of Vongola, that I will never let my brother Sawada Tsunayoshi join the war between me and Bai Lan unless it is absolutely necessary." When he inherited the tenth generation leader of Vongola, he swore to his mother.
His young brother is the only relative he wants to protect.