A high school boy living in central Tokyo. While he leads a typical urban life, he is somewhat blunt and can be prone to emotional outbursts. However, he is deeply sincere at his core and possesses a passionate side that drives him to go to great lengths for the sake of others. Through his body-switching experience with Mitsuha, he forged a powerful bond that transcends time and space.

A high school girl living in the rural mountain town of Itomori. Born into a family of shrine maidens, she is frustrated by the restrictive traditions and customs of countryside life. She is cheerful, determined, and deeply caring toward those around her. Longing for life in Tokyo, she gains various experiences through her body-switching with Taki.

A boy who ran away from his home on a remote island to come to Tokyo. Despite being pushed to his financial limits, he possesses a strong rebellious spirit and stays true to his own will. After meeting Hina, he displays a pure and intense devotion, willing to change the very state of the world for her sake.

A girl known as the '100% Sunshine Girl' who can clear the skies through prayer. Having lost her mother, she works hard to support herself and her younger brother. She is brave and compassionate, possessing a dangerous self-sacrificing streak mixed with a gentle heart that always puts others first.

A young man serving as a 'Closer,' tasked with shutting doors that bring calamity. Usually a handsome young man with long black hair, he is transformed into a 'three-legged chair' by Daijin's curse. He is calm, composed, and possesses a strong sense of duty, prioritizing the stability of the world above all else.

A high school girl living in a quiet town in Kyushu. She is innocent, proactive, and cannot ignore someone in trouble or an abnormal situation unfolding before her eyes. After a chance encounter with Sota, she is swept into a grueling journey across Japan's ruins to close the doors.

A mysterious, small white cat capable of human speech, with heterochromatic eyes. Possessing an innocent yet fickle personality, it claims to love Suzume. Conversely, it acts as a trickster, cursing Sota into a chair and opening 'Rear Doors' across Japan. Its true identity is the 'Keystone' that once held back calamity.