Shizuka Himenogi is a Japanese female student with brown hair and brown eyes. She shares a deep childhood history with Kosuke, known as his childhood friend and the narrative's referenced "Angel". Their separation around age five led to years without contact.

Reuniting in high school, their initial interactions are strained by significant changes in their personalities and perspectives. Shizuka approaches this reunion harboring strong romantic expectations for Kosuke, fueled by her enduring childhood affection. Despite possessing an established reputation as a formidable fighter, her focus remains intensely fixed on rekindling their bond rather than conflict.

Their dynamic evolves from initial friction to a mutual acceptance of differences, allowing their friendship to endure. Small events gradually build, leading to increased displays of affection between them. However, Kosuke's involvement with multiple other women ultimately results in significant disappointment for Shizuka, fulfilling the foreshadowing surrounding her romantic expectations.