Love Allergy is about a girl whose name is Hitoe. Her father is an extremely famous artist and Hitoe has the same passion as her father as well. Hitoe has God's skill when it comes to drawing and painting, but Hitoe herself decides to quit drawing. It is because her heart is broken. Hitoe's teacher who is also a famous artist and a friend of Hitoe's father is going to get married, and Hitoe loved him more than anyone. Considering the fact that Hitoe is at a very sensitive age, she decides to give up drawing which attracts her teacher, Nakada.