Soushoku Joushi no Otoshikata  

How to Seduce a Herbivorous Superior, Soushoku Jyoushi no Otoshikata, 草食上司のオトしかた

Since being mentored by the skilled Asaka, Nakayama has developed strong feelings for him. He pursued him until they both worked in the same office. However, Asaka's behavior changed drastically, becoming strict, cold and even violent. Despite this, Nakayama found himself drawn to Asaka's tough exterior. Little did he know that there was a hidden side to Asaka that made falling in love with him terrifying.