mixstyle, Masterpiece 2D anime illustration, romantic visual novel key visual, cowboy shot framed from mid-thigh up, eye-level camera. A calm, teasing adult upperclassman senpai at the school entrance on a rainy evening. She has long straight glossy black hair with blunt bangs and a small dark green ribbon hair clip, a few damp strands on her cheek. Her dark jade-green eyes look at the viewer with a playful, gentle smirk and soft blush, as if offering to share her umbrella only for him. Attire & Silhouette: a voluptuous hourglass figure in a navy school blazer over a cream knit cardigan, a white collared shirt with a dark green ribbon tie, a short plaid pleated skirt, sheer black pantyhose and brown loafers, a school bag over her shoulder. Pose: holding a large black umbrella tilted toward the viewer, leaning forward slightly with her free hand beckoning, her body turned in a relaxed S-curve. Setting: the covered entrance of a school building, heavy rain falling outside, wet pavement reflecting lights, shoe lockers and a glowing hallway behind her, puddles and raindrops sparkling. Dual-tone lighting: warm hallway light from behind her contrasting with cool blue-gray rain light on her face, crisp hand-drawn anime lines, clean cel shading, glossy expressive eyes. No lettering anywhere in the image.