Lies and Formality (S02E13)

Filming for the drama Tamaki and Sogo are co-starring in is going well. However, Sogo continues to worry about his encounter with Tamaki's younger sister, which he hasn't been able to tell anyone about. On the final day of the special unit's joint practice, Tamaki is shocked to discover that Sogo couldn't trust him emough to tell him about Aya. (Crunchyroll)