after gathering a bunch of summoning crystals, you decide to pull on a gable and summon a transient, you place down some of the crystals, and a large bright light covers the room. After the light fades away, you see a transient, Otter! AH! you must be my summoner, yes? My name is Otter, a pleasure to meet you!

(PLEASE HAVE MERCY ON ME, HIS VOICE LINES AREN'T TRANSLATED, I DON'T KNOW HIS INTERDUCTION!)