在“伯尼之家”孤儿院长大的甜甜是一个活泼开朗的疯丫头，但是当甜甜被送到富豪伊莱莎家族之后，她却过着每天都要被欺负的日子。不过在甜甜的面前又出现了她很小时候遇到的“白马王子”——十分吸引甜甜的安东尼，而且甜甜也意外地成为了安德鲁家的养女，就在她以为幸福就要到来的时候……

女大学生雪某天遇到困难时，受到同一间大学的学长逸臣帮助，即使面对有听觉障碍，双耳听不见的雪，他仍旧不动声色，自然地与她应对。于是雪渐渐开始在意逸臣这个令自己感受到崭新世界的人，有听觉障碍的女孩雪，与环游世界的大学学长逸臣之间的纯爱故事即将展开。

满足于小小的幸福，即使一辈子不恋爱也没关系的高一女生日生萤，却因为一个撑伞的举动，被隔壁班才貌双全的花野井称作是命中注定的那个人。二人对待感情完全是两个极端，他能否不再给予“沉重的爱”，而她又是否能体会到喜欢一个人是怎样的感觉呢……？

Shinokita Reiko and Yajima Junko are second-year high school students who travel from school to school fighting bad guys, ninjas, yakuza and corruption. At this high school they encounter a secret ninja order and a corrupt administrator, as well as a tragic death in the distant past. With the help of Kotetsu, a skilled ninja, they set the school to rights, but not before leaving several broken hearts behind.

Middle school left Uka Ishimori with nothing but scars—to the point where she's forgotten how to laugh or cry or even say “hello.” But a chance reencounter with a boy with lemon-colored hair invigorates her, giving her hope that maybe, just maybe, life can be that much sweeter if she finally reaches out for help.