恋か病か (Series) favorite_border

Volume 1: "There's something wrong with my body..." Tetsumaru is the personal bodyguard of Ageha, the daughter of the Harukaze family conglomerate. He is a faithful servant, but his main concern these days is that when he sees Aeha, his heart flutters. When he sees Aeha, his heart leaps out of his chest. This symptom must be a disease! Palpitations, shortness of breath, tremors in his arms and legs... In order to protect the young lady, he can't give in to the sickness...! This is the first volu...