Manga by author Suehiro machi

."Love", what a nuisance.[Love Allergy] a.k.a. Lovesickness Symptoms: Heart-shaped rashes appearing on the body, dizziness, heart palpitations Cause: A reaction to feelings of love Treatment: ... ???After his heart skips a beat at the sight of his childhood friend, Haname's smile, Arashi somehow awakens in a hospital bed...!? His body is covered in countless heart-shaped rashes.In order to suppress the effects of the allergic reaction caused by feelings of love (a.k.a. Lovesickness), he was prescribed heart-shaped pills to control his love. Since that day, "love" was stolen from him...He can kiss and have sex, but he doesn't know how to love...!? Pay attention to the heart-shaped rashes! Childhood friends restrained from love by a love allergy -- this is their heart-patterned, pure love-sick love!Includes the backstory of the pair's assigned doctor, Miyoshi-sensei.

Rivals since high school now salesmen in the same company, constantly bickering and betting on things to see who wins. This time the winner is whoever makes the other fall for them first, but uke doesn't know seme has liked him since high school

Kaneki has an annoying & noisy neighbour Hayato. One day, Kaneki's cat wanders into Hayato's place & when he goes after it, he sees Hayato with ears & tail?!

.Akiha came to Tokyo to attend school, but on his first day, he's molested on a crowded train. Surprised by it, he was struck dumb but one young man stepped in to help. As they talked, he suddenly hugged the young man to thank him...?A slapstick love story between a college student who is loved by animals and a pure new student who is possessed by a fox!

Ryo and Zen, who were in the same year in the sales department and had been rivals since their high school days, competed in all sorts of things.In the midst of some drunken spree, they decided to become a couple after a silly competition: "Whoever gets the girl first wins."The two still can't be completely honest with each other, but as Ryo and Zen continue their "competition" - a form of communication - they start to act a little more like a couple, but they're both so busy with work that they don't have time to spend together and they keep missing each other...As they get jealous and anxious over trivial things and are tossed about by emotions they can't control, Ryo and Zen's colleague Futami, who has just returned from being transferred to the Osaka branch, asks to be included in their match---!?!?The two become lovers, and restart their careers and love lives with an upgrade!!Love slowly turns into love. Just the two of them, spending everyday like this.