Source: Mellnovy
Eruri, Eru(vin)+Ri(vaille), is a major pairing containing Commander Erwin Smith and Humanity's Strongest Soldier, Levi Ackerman. People see the validity of their relationship due to the immense trust Levi places in Erwin and his decisions [1] and their strong personal bond that Hajime Isayama, the creator of Shingeki no Kyojin, has confirmed himself [2].
Trivia
• In the AU smartpass Erwin blackmailed the Military Police to get high quality tea leaves for Levi [3]