I'm wondering if someone can help me. I don't know the name of the manga, but I remember the plot well. The Main girl and Main guy is a lovely dovey couple. The go to the same school, but the guy struggles financially. For on the of the chapter, the guy's mom forced him to join the competition so that he can win a whole school year's worth for lunch. When he entered this competition, he became some what popular and main girl was getting insecure. However, she knows that their relationship with each other will not weaver. So she decides to get dressed up on the day the guy gets announced as the winner. That same day was, I think the girl's birthday, and they spent the night together.

If this one volume manga sounds familiar to you guys, please help me. I've been searching for a while now and still cannot find it. Thanks in advance.