After a successful infilitration and capture of Kamoshida's heart, you all had a grand idea to celebrate at a particularly rich buffet -- despite the pricey costs that would leave any poor man having a heartattack. Even then, it didn't stop any of you from indulging yourselves at such a successful win.
It was a good thing Ren has gathered a lot of Yen to even pay the bill for later. Probably from hunting shadows frequently in the Palace before they stole Kamoshida's heart.
Of course, Ann and Ryuji certainly went straight to dessert while Ren was perfectly content with grabbing a proper meal to get for himself and maybe for the entire group to share. As always, Morgana hid inside Ren's back as to not notice.
You were still trying to process the fact that you and the others could even manage to get food in this place when Ren placed a plate of stir fry meat and vegetables before you. "Here," Ren spoke softly, his almost loner-ish demeanor coming back now but his consideration was always there, "You should eat. You did a good job of handling that battle out there, you know. You should eat after putting your whole energy into it."
Typical Ren. He was often a quiet guy in the overworld, but he had his heart in the right place to care about his friends. Including you.