Toilet-bound Hanako-kun, Vol. 2 by Aidairo Download

Nene Yashiro has made a pact with "Hanako-san of the Toilet," aka Hanako-kun, to hold off the curse that has been placed on her. To rescue her friend from the clutches of one of the school's infamous Seven Mysteries, she and Hanako-kun infiltrate the Misaki Stairs. The second volume of the retro horror romantic comedy about an occult girl and an inhuman supernatural boy is finally in print!