Spearman and the Witch are partners, and the two are often seen together. He seems to respect her abilities and acknowledge her as an equal.
It is hinted that she has romantic feelings for him, to which he is oblivious because of his attention being directed to Guild Girl.
Spearman possesses some dislike for Goblin Slayer, due to the latter's appearance and personality. He always grumbles about how he can get Guild Girl's attention when he himself can't. Despite this, he doesn't genuinely hate the fellow adventurer as he was the first person willing to help Goblin Slayer protect Cow Girl's farm. It a running gag that he can't recall Goblin Slayer's face after he unmasked himself to the guild.
He is one of the people Goblin Slayer trusts mostly in delivering some package that contains his special items to be used mostly against the goblins. He is also the one who taught Goblin Slayer to use his status as a Silver Rank Adventurer if the market shops show any poor treatment.
Spearman is infatuated by Guild Girl and frequently flirts with or makes attempts to impress her. However, Goblin Slayer unintentionally catches Guild Girl's attention first, much to his annoyance.