Capítulo 221: You doubt my abilities?

In the room:

Ye Wanwan was speechless when she heard Si Yehan say "I'll head over once I've settled some things".

Why does it sound like I'm a wife waiting for her husband to finish his work?

I'm obviously just a high school girl who can't afford to pay tuition fees!

After reviewing math for an entire night, she had exhausted all of her energy. Once her head touched the pillow, she immediately started dozing off.

While she was still drowsy, she heard a pair of familiar footsteps approaching and a chilly breath permeating through her body.

Ye Wanwan furrowed her brows and began to prattle on about something drowsily.

Si Yehan stared at her lips. His calloused fingers brushed over them lightly, but just as he got closer to her, he could hear her repeating, "x minus x in two series, the formula of a general term, sum to n terms… two of them has a limit, four arithmetic operations change sequentially…"