Goodbye, Ren-Ren (S01E22)

S01E01 Welcome to Hyakki Academy! S01E02 Physical Exams Are Life-Threatening?! S01E03 Panic! In Miki-sensei's Youkai Studies Class!! S01E04 An Interview with Haruaki?! Here Comes Youkai TV! S01E05 I Know. Let's Go to Sensei's Family Home. S01E06 Sports Day at Ghoul School!! ~Commences~ S01E07 Sports Day at Ghoul School!! ~Finishes~ S01E08 Amaaki, Momoyama-san, and the Nudity Festival S01E09 Save Me, Seimei-kun! The Case of the Animal Youkai Abductions!! S01E10 School Camp of Terror S01E11 Parent-Teacher Conference from Hell! S01E12 The Great Tokyo Haruaki Search!! S01E13 The Cursed Secondhand Book S01E14 Zashiki-san's Bed-and-Breakfast Home S01E15 Abe no Seimei, Haruaki Abe, and Shutendouji S01E17 Summer! The Ocean! Huh? It's Already August 31st... S01E18 The Temporary Teacher, Ebisu-sensei S01E19 Welcome to the Youkai Train S01E20 The Night Parade Cultural Festival S01E21 The Underground Night Parade Cultural Festival S01E22 Goodbye, Ren-Ren S01E23 The Gashadokuro, Kuniko Utagawa S01E24 The Bond Continuing with Ren-Ren. The Teacher from Ghoul School Will Do His Best!