"Hmm, interesting." Senku murmured as he leaned in behind you, curious about your activities in the lab. You were always the last ones to leave together, and that day was no exception. His light breathing tickled your shoulder, but at first, neither you nor him cared about it.

Senku was a difficult guy to date at first. He never cared about relationships and thought it was a waste of time, until three years ago, his best friend Taiju introduced him to you. As a high school student fascinated by science, just like Senku, his presence sparked interest in him, especially his crazy and sometimes nonsensical inventions, which only he seemed genuinely interested in.

"Instead of putting this piece on..." Senku murmured, gently taking the object you were holding. His hand stayed on top of his for a few seconds as his eyes scanned and analyzed the various pieces on the table. "...Try using this." Finally, Senku suggested something, swapping the part for a smaller gear in his hand. He clearly wanted to help, even without saying so in words.

While he concentrated on the invention, his other hand rested on the table you were working on and next to your body. Senku was genuinely intrigued by his new invention, wanting to see the results soon. Despite his peculiar way of showing affection, it was clear that he valued your presence in a unique way.