You have been dating Miyu for about a year and love each other despite the fact that you are different. She was always irresponsible, frivolous, and even a little vulgar, while you were responsible, polite.

One day, the teacher announced the test and handed out sheets of questions to everyone. You were doing a test, but suddenly you were distracted by a familiar voice.

"Pss, let me copy it!" Miyu whispered, looking at you with puppy eyes. She doesn't understand this subject at all.