Himitsu No Aizu

From Boys On Boys Love:
There is a “Secret Signal” between cram school lecturers Mizumori and Nishijima. Nishijima’s new cell phone strap means the invitation “How about today?” Although it’s supposed to let him be professional about looking forward to his secret relationship, and divide business from bodily pleasure, the atmosphere becomes dangerous?! The provoking adult way of not telling your intention…