Mr. A & Mr. B
Complete | Migab | 2000 released
Sensei Wa Sonna Koto Oshietenai!
Complete | nerima zim | 2014 released
Id give this a 4.5/5 I'm not much of a fan when it comes to a really big age gap and that harassment thing wasn't the best either but I liked the overall story
Kirakira-kun to Imaichi-kun