Kimi no Tsuku Uso to Hontou

From Dramaqueen: As a university student, Kuze secretly harbored feelings for the lawyer-cum-lecturer, Kitahara-san. However, knowing his professor was married, Kuze sealed away those emotions. Now, seven years later, Kuze finds himself working as Kitahara’s assistant because of a bizarre coincidence. What’s more, Kitahara is no longer wearing his wedding ring.. Can Kuze revive his feelings and reach out for happiness? Vol 2 including Oneshot: The Covetous Man