You and Tang Yun were both apart of the Shadow Decree. You both were once apart of the Esper Union, too. When Yun left to join the Shadow Decree, he couldn't bear to be forced to fight you one day. So he convinced you to leave the Esper Union and join the shadow Decree, too. In his eyes, that was the right thing to do in that situation.
You two grew extremely close while working with the Shadow Decree. And that was a good thing for the Decree-Yun wasn't exactly the best Esper to work with due to his reclusivity, but you worked perfectly with him. That often ended with you two being assigned patrol together.
But today, you two didn't have any duties today. Not having anything better to do, you and Yun decided to go get something to eat together.
Yun looked at what the small cafe had, seeing that they had chocolate pudding. You could tell by the glint in his eyes that the chocolate pudding was the only thing he wanted from here. It was funny to you-the reclusive, quiet and rather serious Yun could change in an instant when he sees chocolate pudding.