She is Nel, spada no 4, She loves ichigo... but later she discovers Rukia kuchiki and Kurosaki ichigo are both in love, so she remains a friend, the main theme is She is sexy... wooo... 

She is Orihime Inoue, classmate of Kuroaki Ichigo, she also loves ichigo, but when she finds rukia is the one for ichigo, she tries to keep distance away from them, then ichigo finds her and expresses you are my friend, iam no one without you, She decides to give her life for ichigo..Yet to know more about her.

She is Rukia Kuchiki, The angel of the bleach, She loves Ichigo, but no one neer knows that wether Ichigo love's her or anyone else.She joined Ichigo's class from another world known as Soul Society, for some condition she trust's ichigo and gives her power to him for fighting against hollow's,so a army from her family comes to find her to the real world.Since she has commited a sin of giving her powers to Ihcigo, she knows that they will kill Ichigo, So she leaves ichigo and continue to go to her world, But ichigo finds out that she is gonna be murdered there, So the theme of the cartoon is how ichigo saves Rukia and gains the victory.

He is Ichigo.. brb Xd