Joel IS spellsinger and does sing to use magic. I don’t know if he does this in other routes besides his own, but it would be best not to audition if you aren’t comfortable with singing. 

Likes: His first love (the protagonist)

Dislikes: His first love's tears

Hobby: Collecting magical plants

Skills: Spell Singing

Joel was born to a family of spellsingers–wizards that manipulate magic through song rather than wands. As a child with the spellsinger gift, Joel was disguised and raised as a girl named June for the first eight years of his life, to protect him from being targeted by Leanan-Sidhe, an evil fairy that tempted wizards to trade their magic for artistic ability. As a result of being disguised as such, Joel escaped the fairy's notice.

Joel's spellsinger father worked to subdue dangerous magical beasts in various regions of Gedonelune, and they eventually moved to Reitz, the protagonist’s home village. While disguised as June, Joel met, befriended, and fell in love with the protagonis. The two became inseparable friends, promising to one day attend Gedonelune Royal Magic Academy together. When the protagonist's parents were lost to the epidemic, Joel made a promise that he would never leave her.

Sadly, when Joel's father's work in Reitz was completed, they were torn apart. The day before he left, a distraught Joel removed the protagonist's memories of June out of love, to spare her the emotional suffering of his abandoning her. Nine years later, he enrolled in Gedonelune Royal Magic Academy, and became known as a prodigy spellsinger. There, he waited for the protagonist, hoping that one day she, too, would arrive and that they would be reunited. One year after he enrolled, she finally appears.

Joel's defining characteristic is his brutal honesty - often to the point of harshness. His inability to tell white lies puts him at odds with Eress(a character who has lost her memory and hangs out with Joel and the protagonist.) Otherwise, he is fairly calm and confident but aloof, and not particularly sociable. Amelia describes him as giving off a "perfectionist vibe" and seeming "hard to approach".

As an adult, he remains deeply devoted to the protagonist’s well-being and safety, to the point of often making decisions that remove her ability to contribute to a task for fear of putting her in danger. He is incredibly protective of her, and takes the responsibility of her protection very seriously. While he does tease her for her somewhat mediocre magical abilities, he is also quick to give her credit for her good work. 

Voice: Medium pitched, a bit sarcastic. Can also be up to interpretation. Example