Dear My Teacher by Ajiichi Original Doujin — Ongoing

Dearteacher_ch1_00
Chapter 1 released Sep 19 '13
Chapter 2 released Apr 4 '14
Chapter 3 released Jun 4 '14 Drunk
Chapter 4 released Jun 17 '14
Chapter 4.5 released Oct 2 '14
Chapter 5 released Jan 8 '15
Chapter 5.5 released Aug 9 '15