中學生們最真實的躁動「性」青春，引人注目的新人作家·後藤雪子的大熱作品！
看起來是普通男子但切開來全是黃的：擁有異味癖的伊地知、看見同班女同學隱隱約約胸罩形狀就走不動道的吉倉、對色色充滿超出尋常好奇心的堀田······
以第二性徵正在發育中的中學二年級學生為主角，從而展開的思春期色色喜劇漫畫！！
中學裡的男孩女孩，有的對雞毛小事而煩惱，有的做做傻事發洩發洩，「活在當下」，還有懶懶散散滿嘴怨言說著什麼放棄成為大人了啊之類的。他們關注的，是容貌？是異性？還是胸部大小？還是說，明天校園午餐裡的小零食？
一切盡在，那些時光——
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