Level Up
After the events of the New Blade Battle, Tooru and his companions sublimate to level 2. Likewise, their stats increase dramatically. Later however, Tooru is forced to leave school with Lilith to go to New Death Land, an amusement park. In the end, Tooru declines her offer to be a Duo once again, and goes back to his dorm meeting up with Julie. Upset the following day, Lilith trespasses on the 2nd year's battles and defeats them all. She then challenges the entire 1st year class to her Survive.
Aired 01/02/2015EP 5 - Level Up

Absolute Duo
The story begins with Blaze — a weapon that is the manifestation of a human's soul. Tooru Kokonoe happens to be qualified for this, but for some reason his Blaze is not a weapon, but a shield. Moreover, he enrolled in a school that teaches combat skills, and thanks to the school's Duo partner system, he ends up living with a beautiful silver-haired girl.
(Source: Anime News Network)