故事围绕着一个非常普通的主人公展开，她一边为工作而苦恼，一边通过塑胶模型的组装逐渐成长。

主角小向璃子并没有追求宏大的梦想，她只希望能早日退休。她所在的部门被戏称为“冷衙门”，里面有一群对工作得过且过的年轻人和经验丰富的老员工。在公司中，“活动三部”通常只能被分派一些被其他部门剩下的“鸡肋”项目。

一天，小向璃子被其他部门的同事轻蔑地称为“量产型的人”。这个贬义的称呼让她无法释怀。在下班的路上，她偶然发现了一家名为“矢岛模型店”的店铺。店里摆满了塑胶模型，其中有一款来自TV动画系列《机动战士高达》的“扎古（Zaku）”人型机动兵器。被店主矢岛先生的推荐所吸引，小向璃子第一次尝试组装了塑胶模型。

通过组装模型，小向璃子渐渐找到了生活的乐趣和成长的动力。她发现这项活动让她感到愉悦，也让她对自己的能力产生了新的认识。她开始投入更多的时间和精力来学习和探索模型制作的技巧。

The story revolves around a very ordinary protagonist, who struggles with her work while gradually assembling plastic models. growing up.

The protagonist Xiaoxiang Lizi did not pursue grand dreams, she only hoped to be able to retire. The department she works in is nicknamed "Leng Yamen", and there are a group of young people who are comfortable with their work and experienced old employees. In the company, the "Activity Department 3" can usually only be assigned some "chicken rib" projects left by other departments.

One day, Xiaoxiang Lizi was contemptuously called "quantity" by colleagues in other departments. Birth type of person". This derogatory title made her unable to let go. On the way from get off work, she stumbled upon a shop called "Yajima Hobby Shop". The shop is filled with plastic models, including a "Zaku" humanoid mobile weapon from the TV anime series "Mobile Suit Gundam." Attracted by the recommendation of Mr. Yajima, the owner, Riko Komukai tried to assemble a plastic model for the first time.

By assembling the model, Xiaoxiang Lizi gradually found the joy of life and the joy of growth power. She found the activity pleasurable and gave her a new appreciation for her abilities. She began to devote more time and energy to learning and exploring the skills of model making.