Synopsis: Your kiss is the only medicine

Yuuta Sato is bewildered to discover that his childhood friend Rinko Uenohara has been struck with an exceptionally unusual illness known as the "Kissing Disease". This malady forces Rinko to kiss a person of the opposite sex at regular intervals or risk dying suddenly. Yuuta resolves to safeguard her life at any cost and embarks on a mission to protect her. Will he succeed, or will he falter? Furthermore, how will their friends and acquaintances react to their bizarre situation?