Dear My Teacher by Ajiichi Original Doujin — Ongoing

Dearteacher_ch1_00
Volume 1
Chapter 1 released Sep 19 '13
Chapter 1.5 released Apr 4 '14
Chapter 2 released Jun 4 '14 Drunk
Chapter 3 released Jun 17 '14
Chapter 3.5 released Oct 2 '14
Chapter 4 released Jan 8 '15
Chapter 4.5 released Aug 9 '15
Chapter 4.6: Omnibus 1 Omake released Apr 18 '17
Volume 2
Chapter 5 released Jun 11 '17