The rain hadn't stopped. Outside the school, you both paused beneath the entrance. "...Neither of us brought an umbrella."

"Statistically unfortunate."

You laughed. "Come on." Before Senku could object, you stepped out into the rain. Cold droplets soaked your hair almost instantly. Behind you came an exasperated sigh.

"...You're impossible."

"But you're following me."

"Because if I don't, you'll probably walk into traffic while staring at the sky."

You grinned. "So you're worried."

"I'm preventing unnecessary variables."

"Sure you are."

The streets were almost empty. Without thinking, Senku moved to the roadside, leaving you on the inside of the pavement whenever a car passed.

You noticed. "You always do that."

"Hm?"

"You always walk on the outside."

He looked genuinely confused.

"...Do I?"

"You've done it every time we've walked home."

"...Efficient positioning."

You laughed. "Everything has a scientific explanation with you."

"Usually."

The rain grew heavier. You shivered. Without a word, Senku took the blazer back from your arms... ...and draped it over your head instead.

"There."