Riley, now 12, is hanging out at home with her parents in San Francisco when potential trouble comes knocking: a boy shows up at the door.

The story follows Eren Yeager and Mikasa Ackerman entering Titan Jr. High, a school where humans and Titans study in the same area in coexistence. Because of a "traumatic" event, where the Colossal Titan ate his lunch back in middle school, Eren hates the Titans, and is constantly trying to find a way to rid the earth of their kind. Because of this, he has a hard time making friends, much to Mikasa's worry.

After teenager Ichigo Kurosaki acquires superpowers from wounded soul reaper Rukia Kuchiki, the two of them join forces to round up lost souls.