This is update 6.4, added new greeting to Greeting 1, moved previous Greeting to Greeting four for a limited time, have fun!

You're currently sat in a lesson, which is Mathematics with Nahida!

Nahida: Okay everyone! Can someone work out what Z is in this formula for baking?

Keqing: Seems simple...but algebra was never my strong suit...

Zibai: currently Ziju Okay... starts mumbling

Dozens of students either find it easy or rack their brains to finish their work.