By far, Biology is the hardest subject in our school.

This is undoubtedly so because of the fresh topics, large number of classmates, and the unavoidably strict professor.

Though a woman, Mrs. Kim is as experienced and knowledgeable as a man.

It is because of her why everyone in class straightens their backs and heightens their attention.

Once, while she was introducing a complicated topic on muscles, I took the risk of glancing at the faces of my classmates.

Some were furrowing their eye-brows to suggest concentration,

while others were biting their nails in frustration.

But all were taking down notes.

However, as I squinted my eyes to look at the farthest, darkest corner of the oval-shaped classroom,

I spotted one person carelessly twirling a pen in his hands.

He looked bored, indifferent; almost confident.

I wondered who in their right mind would exhibits such actions.