Ace of the Golden Night

Amano Eisu, called Ace by those who care for him. Raised by a yakuza and upon the day he becomes a member of the clan, he perishes defending his father figure who was in imminent danger. Upon dying he is brought to another world. He is determined to pay his debt and return to Earth and rescue his father. A long journey has begun. The start of a legend. The Golden Night has arrived.