Ask for a Japanese kendo animation. The male pig's foot has a childhood girlfriend who is also practicing kendo. After being defeated by an enemy by the male pig's foot in the competition,

You seem to be saying "the sword of 634"

Divided into juvenile articles and high school articles. The story begins with the birth of the protagonist Natsuki Musashi. Since the time of birth was 4 o'clock on June 3rd, his father Ryuichiro Natsumi named him 634. At the same time, the pronunciation of 634 is similar to the Japanese pronunciation of Musashi Miyamoto's name. It goes without saying that it also contains his desire to become a generation of swordsmen. His father is a master of kendo, known as the Tiger of Iwate, and his mother won the national kendo competition. Both of them are celebrities in the kendo world. Under the influence of such parents, Liu 34 loved kendo since childhood and couldn't find an opponent among his peers. However, when his father took him to Nara to visit his father's predecessor and arch-enemy, Dongtang, 34-year-old Liu Ye found his old enemy, the son of Dongtang. In the first battle, 634 lost to Shura's thorn, which was the first time he lost to his peers, which made him put away his arrogant attitude and practice kendo again. Soon, he met another person who had a deep influence on him, and that was his father's disciple Dashi. The relationship between the two is both an opponent and an apprentice. Under the cruel carving of the big stone, 634 came to this day. In the battle between his father and Dongtang, although he won, he bled to death, but his fighting momentum made Liu 34 not hate kendo, but practice more intently, hoping to defeat Dongtang and his son one day. In the high school chapter, in order to fight against Shura, 634 took deep mountain training, traveled around Japan and challenged experts from all over the world. Gradually grew up in repeated tempering, and finally defeated Shura in World War I and became the champion of all high schools in Japan.