Sanae is over at Hanabi's house for a sleepover when she comes out and asks Hanabi about her relationship with Mugi. After Sanae corners Hanabi on her bed to get the truth about Mugi, she steals a kiss...

The school's music teacher Akane Minagawa may have a squeaky clean image, but there is another side to her as Hanabi finds herself being manipulated by Akane. Just when Hanabi thinks she doesn't have anybody she can turn to, Sanae appears before her...

"I had sex with Mr. Kanai." Akane's bombshell lights a fire in Hanabi, and she vows to fight back. Meanwhile, she tries to go back to being friends with Sanae, but...