Bleach

Kurosaki Ichigo, able to see ghosts, has his life changed when he encounters Soul Reaper Kuchiki Rukia. After a battle with a Hollow, Ichigo unexpectedly absorbs Rukia's powers, becoming a Soul Reaper himself. Now, alongside Rukia, he must protect the living from Hollows and help spirits find peace while navigating the dangerous world of the Soul Society. (Source: MyDramaList)