Konekomaru Miwa is a supporting character originally from Kyoto who serves as the sole surviving head of the Miwa family, a lineage of priests belonging to the Myodha Sect. He lost his parents and most of his relatives during the Blue Night, a devastating event sixteen years before the main story, and was afterward taken in by the Suguro temple. He feels a profound sense of gratitude and indebtedness to the temple that raised him, and this experience shapes his determination to become an exorcist. He is an Exwire of the True Cross Order and a student at the Exorcist Cram School, training specifically to become an Aria, an exorcist who uses sutras and incantations as their primary weapon.

In personality, Konekomaru is timid but highly intelligent. He possesses a sharp, analytical mind and can devise complex strategies in a short amount of time, earning the trust of his peers as a reliable advisor. Despite his soft and gentle exterior, he acts with bravery when the situation demands it and is deeply loyal to his friends. He frequently serves as a peacemaker within his group, often trying to prevent his childhood friend Ryuji Suguro from charging recklessly into conflict, and he is protective of the people who raised him. His natural disposition is kind, amiable, and thoughtful, though he also carries a quiet anxiety that stems from his traumatic loss.

Konekomaru's primary motivations arise from the deaths of his family and his gratitude toward the Suguro household. He is driven to master the role of an Aria so that he can contribute meaningfully to the exorcist cause and honor the care he received from the temple that adopted him. Over time, he develops a personal resolve to trust his own eyes and make his own decisions, moving beyond mere caution toward confident action.

His most significant relationships are with Ryuji Suguro and Renzo Shima, his childhood companions from Kyoto. The three grew up together under the guidance of Tatsuma Suguro, and Konekomaru is often the calm, rational counterpart to Ryuji's intensity and Renzo's easygoing nature. He is also a member of the wider Exwire cohort, interacting with Rin Okumura, Yukio Okumura, Shiemi Moriyama, and others during their shared training and missions.

Throughout the series, Konekomaru develops from a cautious, anxious boy into a more self-assured young exorcist. He learns to balance his intellectual caution with the courage to act under pressure, and his growth is particularly visible in his willingness to stand by his friends in dangerous situations. He continues to refine his skills as an aspiring Aria, focusing on the writing and recitation of sutras, which form the core of his exorcist practice.

Konekomaru's notable abilities include his exceptional strategic mind and capacity for rapid tactical planning, his talent for writing and memorizing sutras, and his proficiency in touch typing. His small stature and gentle demeanor belie his mental resilience, and he is considered the intellectual anchor of his immediate friend group. As a trainee Aria, his combat style relies on verbal prayers and sacred texts rather than direct physical confrontation, making him a specialized support member of any exorcist team.