Melting Man

Mushy Baldwin is a man whose body melts when the temperature rises around him—or simply when he feels nervous. Due to his special condition, he struggles to find his place in society, let alone hold a job. One day, he receives a visit and invitation from a strange company called "El Dorado," filled with others who seem just as strange as him... if not stranger!

(Source: Comico)

Note: Chapter count includes a prologue.