"Big bro, Koharu came to school today."
Ara had thought it was smart to inform her brother about it. Since Kou and Gin were both away, it's better to let him know.
"What? But she's supposed to take her exams at home. What was she doing there?"
Suzuki Aki's voice came out sounding incredulous as expected. It was a bit even too loud for Ara's ear, so she shifted her phone to her other ear in time to hear him complain. "That school's unreliable with security."
"Well, she probably sneaked out of her house after the test."
This was, of course, possible considering how sneaky Okada Koharu was. Once they reached the gym, they already had an idea about what happened. After the test, thinking that it was over, the teachers left the Okada residence, expecting Koharu to stay at home and behave or her parents to take over guarding her.