I’ll Make Sure To Behave Properly

"To a long, prosperous partnership!" Tristan raised his glass. "Cheers!"

"Cheers!"

Everyone but Thirteen drank wine and champagne. He didn't want to get drunk, so he only filled his glass with fruit juice. 

Drinking alcohol seemed to trigger a drastic change in his personality in a way he still couldn't understand even now that he was older.

During his grandfather's birthday several years ago, he even drank wine to use the Drunken Fist.

When he asked, Erica and Sherry only told him he didn't have to worry because his drunken self was still very respectful to them.

He was just more open and didn't reject their advances like the sober Zion would.

Out of curiosity, he asked them to record what he was like when he was drunk, but both girls rejected the idea.

When asked for an explanation, they said that the drunk Zion and the sober Zion should stay in their respective fields.

In the end, Thirteen managed to convince them.