It's good to clearly explain the rules for a test.
Daichi is unable to talk due to his cold, but he needs to watch over a test.
Daichi wants to instruct the students.
Daichi texts her friend what she needs to say, and asks them to talk to the class.
Daichi passes out the test with written directions in tiny handwriting.
The students finish the test quicker after hearing Daichi's friend speak.
The students make errors on the test because they can not read Daichi's handwriting.