Chapter 1: Run

Run is the first chapter of UnitEleven.

Summary
The chapter begins with Kazuo running through the streets of Isehara, running from an unnamed classmate for losing a bet and not paying up.

While running, Stefan Wagner, lightning elite, is introduced standing atop an apartment building, overlooking a park where his subject candidate, Hikari Hiakizawa is located. Being completely set on his decision, he returns to his domain, ready to select Hikari for the role of lightning apprentice. However, Kazuo's path leads him towards the park that Hikari is situated at, and as the selection process takes place, Kazuo jumps over the fence and is struck by a massive bolt of lighting meant for Hikari.

Afterwards, Kazuo wakes up inside Wagner's Domain where Wagner himself is blank faced. Realizing he got the wrong person, Wagner begins to panic until he realizes exactly who Kazuo is, to which then Stefan gains a grim look on his face. Feeling hopeless and noticing that Kazuo looks completely lost, he begins to explain to him the concept of Elementals and their purpose. He then gives Kazuo a choice: Become an Elemental apprentice, or have the power revoked (Kazuo would have to die). Kazuo reluctantly agrees to become an Apprentice.

Later on, to show Kazuo the kind of work that Apprentices do, Wagner brings Kazuo along on a mission to display what kind of things Elementals deal with. Wagner and his counterparts, known as Generation 10, are shown fighting against a demon type figure, which have been popping up around Japan frequently over the past 20 years. The Elementals have no idea what causes these demons to appear, but they are tasked with killing them anyway. Kazuo is told to stay back as they fight, but Umehara, being eager to test his powers, activates his powers and attempts to fight, but gets seriously injured in the process.

After taking care of business, Wagner lectures Kaz about jumping into fights and also tells him that he won't be there to save him from dying for long, as there is a 30 day grace period after selection where the Elites can remain on Earth. Afterwards, Elites are confined to Domains and the Public Domain for the rest of their lives. He tells Kazuo that he needs to undergo rigorous exercise and training in order to be anywhere close to his counterparts, who he has yet to meet. At the end of the chapter, Stefan is seen talking to another unknown person, saying "There's been a drastic change of plans. Chen, Hiakizawa is yours. A mistake was made on my part and we've got someone else. We'll make it through though."