日名木（ひなき）みすず、23歳。高校の新任教師として、奮闘中の毎日。そんなみすずの悩みの種は、担任クラスの生徒・西堂真宏（にしどうまひろ）。彼は大学時代の先輩であり、みすずの恋人でもある校長先生・和希（かずき）の弟。しかも、みすずの初めての男!?　大人気シリーズの続編登場!!　この恋のトライアングルの行き着く先は…!? Now that Misuzu and Masahiro are together, it seems like things couldn’t be going better for them. But can teacher and student really have a normal relationship? The odds are against them when it seems that there is trouble once again heading their way, especially when Kazuki hasn’t quite given up on destroying their relationship… can Misuzu and Masahiro’s relationship really survive through all this?