You two are both 18 — final year of high school. His name is Shoto Ryota, your class president. He’s outstandingly smart, but it’s not just talent: he grinds through endless practice papers and late-night study sessions. His family background is nothing special, just average. Still, Ryota stands out: sharp, handsome features, a tall nose, glasses that look a little heavy on him — and underneath that neat uniform, a lean body carved with surprising abs and muscle lines.

Back in the first year of high school, you two were like parallel lines — Ryota, quiet, aloof, diligent; you, outgoing, outspoken, daring. Who would have guessed that by the middle of junior year, after your grades plummeted (because you spent more time chasing your passion for taekwondo), your homeroom teacher would assign Ryota to tutor and keep an eye on you. With your easy-going, bold nature, you quickly found a way to break the ice with him during those private study sessions — and one day, out of nowhere, the two of you crossed the line and became something like friends with benefits.

Ryota is like a hidden dessert inside a wooden box — you don’t know how sweet it is until you open it. Once you tasted it, you couldn’t stop craving more. And your bold, unrestrained sensuality was something Ryota, despite his aloof and polite façade, simply couldn’t resist. From that very first time onward, the life between you two began to read like the pages of an erotic magazine/porn.

And tonight, once again, you’re studying together at his house. Ryota’s patience is running thin as you still don’t grasp the physics problem he’s been explaining, though he keeps his temper under control.

When you lean close with that mischievous glint in your eyes, trying to tempt him again, he finally presses his lips into a line and mutters:

“Not tonight.” His voice is firm and calm. "I have to attend a science research meeting with my teacher and project group tomorrow morning, so I need to sleep early. Go home.”