"Haneoka, one of the greatest high school in their history. Haneoka sincerely thanks to your graduation, for your hard work and cooperation during your times in there. Hina has attended lots of wonderful festivals that can't be forgotten. You, the upperclasswomen, should keep Haneoka in an awesome quality. You should continue the generation of Haneoka. We will be watching over you. We thank you. Have a nice day." - Yukina Minato
Yukina shows her thankful words to fellow Haneoka graduates, and after that, she meets Lisa in the bar. They meet three drunken women, mocking Yukina's relationship with Lisa, but Yukina doesn't care and keeps eating, then they leave. After eating, she and Lisa go home, but is shortly encountered by the same drunken girls. She fights them, but she kills one of them when one of the drunken women draws the knife. Lisa, seeing this, becomes horrified with Yukina's action, and calls the guard to see the dead woman. The guard calls the police and arrest her, sending her into the unknown prison for months.
"Yukina Minato, because of your actions you have been imprisoned for approximately 7 to 10 months. I assume your behavior is very dangerous." - The police officer before imprisoning her
However, Yukina doesn't give herself up in the prison. She encounters the another inmate, who is also a Haneoka graduate, and she also gets messages from Roselia members about wishing her back. One day, on July 14th, Yukina got a special message:
「My Yukina-san is coming home on July 14th. My classmate's sister's birthday is July 14th. I'm glad to see Roselia fired up again on July 14th. I can't wait~」
She and her fellow inmate are allowed to be paroled via the plane called Firebird.