"Tsugumomo" is a manga series written and illustrated by Yoshikazu Hamada, serialized since 2007. The narrative centers on Kazuya Kagami, a high school student who cherishes a sacred obi left by his late mother, Kiriha. This obi, named Kiriha, is revealed to be a tsugumomo—a supernatural object imbued with a spirit. Tsugumomo are born from human emotions and desires, often manifesting as powerful entities tied to specific objects. Kazuya's life takes a dramatic turn when he encounters other tsugumomo and their wielders, thrusting him into a hidden world of spiritual battles and ancient traditions.

The story begins with Kazuya inadvertently awakening Kiriha, who takes on a human form and becomes his protector. Kiriha is fiercely loyal to Kazuya, often displaying a playful yet possessive demeanor. As Kazuya learns more about tsugumomo, he discovers that they can be both benevolent and malevolent. Malevolent tsugumomo, known as amasogi, are corrupted versions that bring harm to humans. Kazuya and Kiriha form a partnership to combat these amasogi, often encountering other tsugumomo wielders who assist or challenge them.

Throughout the series, Kazuya's abilities grow as he trains to harness the power of his tsugumomo. He is joined by a diverse cast of characters, including Chisato Yoshikawa, a shrine maiden and childhood friend who harbors feelings for him, and Kokuyou, a powerful tsugumomo with a tragic past. The narrative explores themes of loyalty, loss, and the consequences of human emotions, as Kazuya uncovers the truth about his mother's death and the deeper mysteries surrounding tsugumomo.

The plot is driven by episodic battles against amasogi, interspersed with moments of character development and world-building. The series delves into the origins of tsugumomo, their connection to human desires, and the spiritual hierarchy governing their existence. As Kazuya's journey progresses, he faces increasingly formidable foes, including rogue tsugumomo wielders and ancient entities that threaten the balance between the human and spiritual realms.

"Tsugumomo" balances action, humor, and emotional depth, with a focus on the evolving relationships between Kazuya and his companions. The series also incorporates elements of Japanese folklore and mythology, enriching its narrative with cultural references. As the story unfolds, Kazuya's understanding of his role as a tsugumomo wielder deepens, setting the stage for larger conflicts and revelations about the intertwined fates of humans and tsugumomo.