Morihito Arihara, known as Mori, is a member of SOARA under TSUKINO TALENT PRODUCTION. Born April 21 with blood type AB, his name signifies "guard, protect, defend, obey person," while his surname means "exist in the countryside plain." Standing 177-178 cm tall, he has short dirty blonde hair, pale green eyes, and is the only TSUKIPRO idol who wears glasses. Live-action portrayals adjust his hair to light reddish brown for realism. Mori possesses a calm, motherly, and gentle nature, taking great pleasure in caring for others, especially doting on Sora Ohara. Despite his youth, he exhibits composure and dignity, acting as a reliable older brother figure. He excels academically, achieving top grades and popularity. He can become strict, particularly when overseeing Sora's studies. He dislikes raw eggs, sad stories, dry fruits, two-faced people, and crowds. His likes include music (especially Sora's compositions), walking, reading, dogs, cats, sunsets, morning glow, and Japanese food. An only child, Morihito was exposed to classical music from a young age due to his parents' work in the music industry. He met Sora Ohara in high school as classmates, developing a deep admiration for Sora's musical creativity. This friendship led him to join SOARA as a vocalist and guitarist. He also works as an office employee at TSUKIPRO. Within SOARA, Morihito serves as the de facto leader, handling negotiations and managerial tasks to support the official leader, Sora, ensuring group stability. In the "Machine Elements" setting, he supervises and maintains the mechanical birds known as [Kazatori], where his calm demeanor and knowledge are essential. Across official media, Morihito appears in alternate universes: - In "TAIKYOKU DENKI," he carries Gokuzoku (Prisoner Tribe) traits from a jiangshi ancestor, manifesting as elongated nails despite being human, within a setting defined by Yin and Yang energy factions. - In "Tsukino Empire," he serves in the Third Fleet "Seiryou" alongside SOARA and Growth members. His spirit beast is the Seiryou dragon type Ryuu-san, and his military stats show high strength, vitality, dexterity, and intelligence. Influenced by his father, a military academy instructor, he excels in strategic roles and acts as the group's peacemaker, balancing Sora and Nozomu's energy. Key relationships define him: - With Sora Ohara: Childhood friends on a first-name basis ("Mori" and "Sora"), Morihito openly admires Sora's music and provides feedback. Sora relies on him emotionally, often seeking physical comfort like hugs during heightened states. - With Soshi Kagurazaka: Childhood friends who share tea and collaborate in overseeing SOARA's younger members, their dynamic includes mutual teasing about Morihito's motherly tendencies. - With Ren Munakata and Nozomu Nanase: He treats them like younger brothers. Ren affectionately calls him "Sou-nii," while Nozomu's lively nature contrasts yet coexists harmoniously with Morihito's calm. His age progression shows him starting at 17 in 2015 (176 cm), reaching 20 in 2017 (178 cm), and 25 by 2022 (178 cm), reflecting his evolving responsibilities within SOARA and TSUKIPRO, including his expressed interest in exploring music production roles as an adult.