Nozomi Yumehara attends L'École des Cinq Lumières as a cheerful, distractible student with undefined aspirations, frequently abandoning fleeting passions. Her routine existence shifts dramatically upon meeting Coco, a fairy from Palmier Kingdom, which leads her to discover the Dream Collet. Embracing her destiny as Cure Dream, the Pretty Cure of Hope, she adopts the decisive catchphrase "It's decided!" to affirm commitments. Transformation into Cure Dream alters her appearance: hair brightens and lengthens into ringlets secured by yellow butterfly clips, paired with pink butterfly earrings. Her combat attire presents a cream and fuchsia two-piece ensemble featuring a butterfly-shaped chest bow with a green gem, matching fingerless gloves, shorts, and boots. Power-ups modify this form: Super Cure Dream adds butterfly wings and lightened hair; Shining Dream (accessed in *Yes! Pretty Cure 5 GoGo!*) grants neon-pink hair, white wing accessories, angelic wings, and a rose emblem; Rainbow Cure Dream (in *Precure All Stars DX 2*) keeps Shining Dream's base but substitutes smaller golden wings. Her offensive techniques include Dream Attack, projecting purifying light through a hand-borne butterfly symbol, and Crystal Shoot, discharging explosive pink crystals. Pivotal relationships shape her journey: she maintains an unbreakable childhood bond with Rin Natsuki despite their contrasting personalities. Her exuberant friendship alleviates Urara Kasugano's loneliness. Romantic ties with Coco evolve from her crush on his human guise to mutual affection; after his return to Palmier Kingdom, they correspond through letters, culminating in his marriage proposal while nursing her through exhaustion-triggered hospitalization. Initial rivalry with Milk over Coco transitions into respectful friendship. As an adult instructor at Plaisir Academy, she mentors Rumi Katagiri, fiercely supporting Rumi's ambitions despite early uncertainty. Her evolution focuses on self-realization: initially academically unremarkable and untalented, her determination to defend Coco's world establishes her leadership in recruiting allies Komachi and Karen to the Pretty Cure team. She ultimately identifies teaching as her calling, achieving this career as an adult where she nurtures students while balancing Cure duties. Adult transformations exact severe physical tolls, causing fainting spells and a week-long coma post-battle, yet she continues protecting hope. Her name—combining "Yume" (dream) and "Nozomi" (hope)—directly reflects her identity as Cure Dream and persistent optimism.