Inuyasha is the younger brother of Sesshomaru. He is known as a hanyou which is a half demon. He, like most of the youkai (demons) was in search of the shikon no tama (the sacred jewel) which means is Japanese "The Jewel of the Four Souls"(roughly). He was "attacked" by the priestess who was guarding it, Kikyo. She shoots only one waring arrow, then leaves him alone. As time passes he spies on her, wondering about why she spared his life. She confronts him and soon they are in love. Soon after they fell in love Kikyo shot at Inuyasha a little too close. He was angered by this and decieded to take the shikon no tama. After he had stolen it Kikyo shot him very close to the heart and pinned him to a tree. 50 yrs later Kagome somehow wakes him up and releases him from the tree. He is still after the shikon no tama and follows Kagome around. He later discovers the sword that his father had left him: Tetsusaiga,  which is made out of one of his fathers fangs. He soon falls for Kagome also. When Kikyo rises from the dead, the true story of their past is revealed and he is torn between two woman, one who is the reincarnation of the one who he loved and the other a dead girl.   

 

Blades of  Blood: uses his own blood from a wound as a weapon.

Iron Reaver, Soul Stealer: His claw slashing

Wind Scar: A extremely powerful attack used with his sword, it can kill 100 youkai in one swing.

Human: He becomes completely human the first new moon of every month when there is no youkai blood flowing through him. He is one till the sun rises.

Demon: He becomes comletely demon when his human blood is not flowing through him. It happend when his sword is not there and it looks like he's going to die (last resort defense).