Sakura Karasuma teaches English at the high school attended by the main characters, distinguished by her casual tracksuit jersey, glasses, and short bob-cut brown hair. Initially viewed by Alice as a rival for Shinobu’s mentorship, their relationship shifts gradually from tension to mutual respect, with Alice warming to her despite early jealousy.

Gentle, unassuming, and occasionally scatterbrained, Sakura forms a steady professional partnership with Akari Kuzehashi, the home economics teacher. She discreetly aids Kuzehashi in managing classroom challenges, particularly mediating Karen’s disruptive behavior and forgetfulness to foster better teacher-student rapport.

Consistently supportive, Sakura prioritizes student welfare—easing Alice’s worries over Shinobu’s focus, intervening in peer misunderstandings, and tempering firmness with empathy when addressing Karen’s academic struggles. Her calm adaptability underscores interactions where discipline coexists with genuine care.

In ancillary media like the *Pretty Days* OVA and *Thank You!!* film, she upholds her role as a composed, reliable faculty anchor amid shifting student dynamics. While her personal history remains unexplored, her narrative contributions center on sustaining stability during cultural exchanges and relationship shifts. Her unchanged design and demeanor across all adaptations reinforce her approachable, steadfast presence.