Gekijouban Steins;Gate Fuka Ryouiki no Déjà vu (novel series)

Gekijouban Steins;Gate Fuka Ryouiki no Déjà vu (劇場版 シュタインズ・ゲート 負荷領域のデジャヴ) is a light novel series written by Tatsuya Hamazaki.

Volume 1 (劇場版 STEINS;GATE 負荷領域のデジャヴ 上)Cover Illustration by huke, frontispiece by SAKAI Kyūta (坂井久太), and text illustrations by bun150, ISBN 978-4-04-100809-6, published May 1, 2013.

Volume 2 (劇場版STEINS;GATE 負荷領域のデジャヴ 下) Cover Illustration by huke and text illustrations by bun150, ISBN 978-4-04-100865-2, published June 6, 2013.

Synopsis
Kadokawa synopsis for Volume 1: Kanji= 幼なじみの椎名まゆり、そして最愛の人・牧瀬紅莉栖を救うため幾多の 過去改変（世界線移動）を繰り返した 岡部倫太郎は、 ついに理想とする「シュタインズゲート世界線」に到達した.

その代償に紅莉栖は岡部との記憶を失ってしまうが、 秋葉原の雑踏で偶然の再会を果たした二人はもう一度絆を深めていく.

しかし、いくつもの世界戦を超えた岡部の脳には、 多大な“負荷”がかかり始めていて！ ？ 完全新作の劇場 版がまさかのノベライズ！ ！ Romaji= Osananajimi no Mayuri Shiina, soshite saiai no hito・Makise Kurisu wo sukuu tame iuta no kako kaihen (seikaisen idou) wo kurikaishita Okabe Rintaro wa, tsuini risou tosuru "Shutainzugeeto seikaisen" ni toutatsushita. Sono daishou ni Kurisu was Okabe to no kioku wo utsuteshimau ga, Akihabara no zattou de guussen no saikai wo hatashita futari wa mouchido kizuna wo fukamete iku.Shikashi, iktsumo no seikaisen wo kouta Okabe no nou ni wa, tadai na "fuka" ga kakari hajimeteite!? Kanzen shinsaku no gekijouban ga masakano noberaizu!! English= In order to save his beloved one, Makise Kurisu, and his childhood friend, Mayuri Shiina, Okabe Rintaro has changed the numerous pasts (moving [through the] world-lines) over and over. Finally he has reached the ideal Steins Gate world line. The cost of which was Kurisu losing her memories of Okabe, but in the hustle and bustle of Akihabara their sudden reunion played out in their bonds deepening once again. However, by overcoming numerous world lines Okabe's brain has begun to bear a great "burden"!? A great surprise! The all new movie has been novelized!