Bakura is a friendly, cheerful character known for her frequent smiles and sudden bouts of sleep, even mid-conversation or while walking. Her fascination with dreams drives her to collect pillows, analyzing the gaps between dreams and reality. Kazuya Kagami’s pillow becomes a cherished tool, as she immerses herself in its dreamscape to connect with him and fiercely opposes its destruction.

Using abilities named Soul’s Treasury Passage and Soul’s Treasury Awakening, she navigates and manipulates dream realms, guiding others in and out with situational exit conditions. She plays pivotal roles in confronting supernatural threats like amasogi—spirits born from corrupted wishes—helping resolve conflicts such as Isuzu Iriha’s spiritual turmoil and probing Kazuya’s dreams for weaknesses against antagonists like Kanaka Kagami.

Her interactions with Kazuya and allies blend comedy and risqué moments, from accidental nudity in bathrooms to dream scenarios with eccentric outfits. These antics underscore her curiosity about human nature while advancing her loyalty to Kazuya, comforting him during emotional crises and collaborating with figures like Ouhi Oriobana to strategize against enemies.

Implied to be a tsukumogami—an object transformed into a youkai—she exhibits shapeshifting traits. Though her origin remains unspecified, her recurring influence bridges human and supernatural realms. Evolving from a secondary helper to a central figure, she uncovers buried memories, devises countermeasures against threats, and balances lighthearted charm with crucial narrative stakes.