Bleach

Ichigo Kurosaki is a teenage boy given the ability to see ghosts.While trying to help a young girl ghost being terrorized by a giant monster called a Hollow..he's saved by the intervention of Rukia Kuchiki, a tough female soul reaper..

Later when a Hollow appears and terrorizes Ichigo's family, an injured Rukia makes a fateful decision and transfers her remaining powers to Ichigo.

Waiting for her powers to return Rukia poses as an exchange student at Ichigo's school.Ichigo must take her place as a Soul Reaper.

When he later battles a Hollow, he recognizes it as his friend, Orihime's older brother.

Orihime learns that her brother is a Hollow, a soul that didn't pass peacefully over to the Soul Society but lingered instead, pursing those they loved most in life.

Ichigo's friend and classmate Chad Sado brings a bird to school that turns out to be cursed and contains the soul of a boy who lived a tragic life.

Rukia and Chad fight a vicious Hollow named Shrieker, the Hollow has defeated a large number of Soul Reapers in battles and has committed many crimes.

At a Soul Reaper supply shop, Rukia picks up a modified soul to take over Ichigo's body while he's pulling Soul Reaper duty. But the mod soul takes off with Ichigo's body to have a little fun!

Rukia and Ichigo track Ichigo's body to a local elementary school. While Ichigo struggles with mischievous soul inhabiting his body, Rukia receives word of a Hollow sighting nearby, but is unable to confirm it's location.

On the anniversary of his mother's death, Ichigo intends to take the day off from Soul Reaper duties and visit her grave with the rest of his family, but Rukia is at the cemetery waiting for him. She hears how his mother died and has some suggestions to offer him.

Ichigo faces the Grand Fisher, a Hollow that uses a lure in the shape of a little girl, who Ichigo recalls with shock as the same girl he saw when his mother died. He attacks the Hollow in a rage, making him an easy target.

When television hero Don Kanonji schedules a live recording of his show "Spirit Hunter" at a local abandoned hospital, Ichigo is surprised to see that an actual demi-Hollow is being summoned for the show.

Rumors spread about Ichigo and Rukia's relationship when they keep dissappearing from school to respond to Hollow alerts. Overworked and frustrated, Ichigo is unaware that one of his classmates, Uryu Ishida, possesses spiritual powers of his own.

In order to prove how  useless Soul Reapers are, Uryu releases bait to draw Hollows to their town. Whoever gets rid of the most wins the challenge, but soon Hollows are everywhere, including one that threatens Chad and Ichigo's sister.