Epidemic

Sawada Tsunayoshi's childhood friend visits him in Namimori. The latter is surprised that his friend decided to bring his friends along and has decided to stay in Namimori for a short vacation. This supposedly blissful reunion for Tsuna and his friend turns grim when a rumour about an "epidemic" spreading in Namimori reaches their ears. After doing some research, Reborn tells Tsuna that it is not an epidemic. Now, Tsuna and his Guardians along with his childhood friend and his group try to stay alive. Rated T. AU. Yaoi.