Therese Alexanderite/Relationships

Naofumi Iwatani
She shares the same opinion as L'Arc about Naofumi. Like L'Arc, she, too, refused to believe Naofumi to be the Shield Hero. After learning from Raphtalia about his crafting skills, she asked him to make a jewel for her.

She was struck in awe after seeing the bracelet crafted by Naofumi, which became her obsession and always felt that she underpaid Naofumi. Therese was moved to tears and always bragged about the bracelet to her allies or searched for gems or craft on par with the bracelet.

Therese gives utmost respect for Naofumi, after seeing his crafting skill and felt his talent is unmatched by any. Therese also gave Naofumi lessons in magic when he was in their world. Once, Glass warned L'Arc to improve his crafting skill unless he wants to lose Therese to Naofumi. But L'Arc admitted that though Naofumi raised the hurdle for him, both Therese and Naofumi have a platonic relationship.

L'Arc Berg Sickle
L'Arc and Therese have been friends and companions for a long time. They work closely together and their skills compliment each other. However, they often get into scuffles from time to time. Therese doesn't restrain herself from using physical force against L'Arc in case of disagreement. Despite this, they care deeply for each other. When L'Arc gets drunk or out of control, it is Therese who reigns him in.

It was revealed that L'Arc has romantic feelings towards Therese which have not been reciprocated. When Therese started going obsessed about Naofumi's craftsmanship, this became a source of jealousy for L'Arc. He then worked tireless to try to improve his accessory-making skill which has not yet been successful.

Glass
Therese is often a companion of Glass through L'Arc. While they respect each other, they do not interact much with each other.

Kyo Ethnina
Despite Kyo being from the same world as Therese, the two have very different moral standards. While L'Arc, Glass and Therese were surgically trying to kill the Legendary Heroes of Raphtalia's World, Kyo decided to corrupt a Guardian Beast and commit mass murder. Because of this difference of opinion, Therese and her group decided to temporarily set aside their own mission to team up with Naofumi to defeat Kyo. Therese and her companions are wary of Kyo and his ruthlessness.