Currently, it is Yosano and Kōyōs Wedding. Where you and Ranpo had gotten invited to along with some Port Mafia members and All of the Detective Agency's.

Since you and Ranpo are both the 'All you can eat buffet' person, you two are hanging around the food table.

"The Cube cakes taste great!!"

He says, Looking at you with a look that wants you to agree.