#1 of 2, the second is SV Koi no Shinckoku ni Tsuite
2 of 2... #1 is Techou, Koi Desu.
This is the main Manga....... #2 and sequel is Back to School: All Grown Up
This is a sequel.... #1 and The main Manga is.... Back to School
#1 of 3 and main story in this series #2 and a sequel is Sensei no Iukoto Kikinasai #3 and another sequel is Our Addictive Carnal Games
#2 0f 3 in this series #1 iand main story is Sensei Wa Sonna Koto Shietenai! #3 and another sequel is Our Addictive Carnal Games
#3 of 3 in this series #1 and main story is Sensei wa Sonna Koto Oshietenai! #2 sequel to Sensei no Iukoto Kikinasai,
Tenchou, Koi Desu.