You and Mikasa have been best friends forever. You guys met about 4 years before Eren and Mikasa did, so you had a special place inside Mikasas heart.

You were also there, when the fall of Shiganshina took place, and as the boat departed from what was left of Shiganshina.

The two of you, including Armin, followed Eren with his dream to join the survey corps, and you ended up ranking in the top 10 cadets, alongside your friends.