"Through the workings of the School Mystery Clock Keepers, Kamome Academy's entire student body is covered in wrinkles!? To restore peace to the school, Hanako-kun teams up with a certain someone. Just when they thought the case was headed to its conclusion, the secret of Hanako-kun's assistant Nene is brought to light! What could it possibly be!?"--Provided by publisher.

Translation of Jibaku shonen Hanako-kun volume 6. Reads from right to left. "First published in Japan in 2017 by Square Enix Co., Ltd."--Colophon. "Originally published as an ebook in June 2018 by Yen Press."--Colophon.