EruRi

Eru(vin)+Ri(vaille) is a ship between Captain Levi Ackerman and Commander Erwin of the Attack on Titan series.

 

Cannon
Erwin and Levi places deep trust and respect for each other to a certain extent.Levi places full trust in, obeying his every command and judgment (chapter 28).

However, this did not stop Levi from speaking in his usual rude manner around him. Erwin was also one of the few people that could maintain casual conversation with Levi, which able him to exchange brief banter with one another on equal grounds.