It is a famous sword from the Heian period in Japan, and was made by Yasuna, a famous swordsmith who lived in the country of Boqi at the time.
With his exquisite skills, Angang made the boy Che Angang into a masterpiece known as one of the "Five Swords of the World", and these five swords also include Onimaru Kunitsuna, the famous Dadiantai, the three days and the moon Sojin and the number of beads and pills Hengji.
The reason why the boy Che Angang got his name came from the Japanese warrior Genji Minamoto Rarimitsu used this knife to kill the ghost god named the wine swallowing boy in the Great River Mountain.
The Wine Swallow Boy, also known as the Wine Boy or the Wine Boy or Zhu Tun Boy, is a famous demon and ghost leader in the Heian period in Japanese mythology and legend.
The wine swallowing boy's real name is Waidaomaru, one of the three major monsters in Japan, which once shook Kyoto, and appeared in legends such as the Great River Mountain Retreat War and the Night Walk of a Hundred Ghosts.
He got his name because of his penchant for alcohol, and he occupied the great country of Tanba. Legend has it that the drunken boy feeds on the flesh and blood of women and children, and is good at seducing**, and after he succeeds, he cuts off the women's nipples and eats them.
According to legend, during the Heian period, the ghost king Sakutomi boy led many ghosts in Daejiangshan to build palaces and kidnap humans for food, which brought great panic to the people.
Minamoto Yorimitsu and the Four Heavenly Kings were tasked with a crusade, but they were not strong enough in front of the powerful Oni King. So they went to the three shrines of Kiyomizu Hachiman, Sumiyoshi, and Kumano to pray for the protection of the gods.
After praying, on their way to the foot of the mountain, they met three old men incarnated by gods, who presented them with the Oni Poison Wine and the Star Armor, and told them that the wine was harmless to humans, but deadly to the goblins, and could help them defeat the Oni King.
Yuan Laiguang used the boy to cut Angang, and with the help of the power of the god and ghost poison wine, he successfully killed the wine swallowing boy, and thus, this knife has the name of "Tong Zi Cut". The sword was collected by the shogun's family during the Muromachi period and was used by famous generals such as Toyotomi Hideyoshi, Tokugawa Ieyasu, and Ietada.