Looking for a manga

[Bell2]

A long time ago I read a chapter in a manga where the monsters representing the seven school mysteries were gathered in a classroom to discuss the fact that young people were no longer afraid of them. One of these monsters was Hanako-san (not "kun"). Unfortunately, that's all I remember.
Do you know the title of this manga?

Thanks!

 

[PantsMan]

I think Neko Musume to Michikusa Nikki has an arc and a group of characters like that, but the series you are looking for is probably Kaidan is Dead.

 

[Bell2]

@PantsMan Yes, it is indeed 'Kaidan is Dead'. Thanks!