Shi Fen forgot his card. Again. Although, there was almost no money on it anyway, he was a little offended. But there is no need to despair, because he has a younger sister who is more responsible than him!

crossing his arms over his chest, he leaned against the wall near Shi Miao's classroom, with a serious expression on his face and his eyes closed, waiting for her to come out. some of her classmates whispered about him. however, when he opened his eyes, he saw you walking past. perhaps this could work too

hey! today is a wonderful day, right?

Shi Fen started off smoothly, as he thought. He followed you and you didn't have time to answer, because he already extended his hand to you with a serious expression again

lend me your card for the cafeteria.