Section D

Leon Dale High is a prestigious school known for its peaceful environment, but Leon Dale High has a little secret that only the campus knows. And that's secret is the existence of section D, the last section that always wants trouble. And the entire population fears them because they fear no one, and they are being called "gangsters". But everything changed with the appearance of the new girl who's moved to the section D when all the students there are all boys.

She's the only girl who made Section D become a better section.

She's the only girl who is feared by section D.

She's the only girl who sacrifices herself just to protect her classmates.

She's the only girl who taught section D how to trust each other and taught what is the real meaning of "friend"...

And lastly, she's the only gem of Section D.

But when her true identity was revealed, she lost all of the memories she had made with the entire section. Her identity that made all of the section D turn into a mess.