My Miniature Life Manual

eunseo and myeongjin are two childhood friends who grew apart as they got older, but things take an unexpected turn when eunseo gets a packet of jelly beans from a mysterious old lady. the next morning, eunseo becomes the size of a little bean himself! however, the only person eunseo can ask for help is myeongjin. life is suddenly so different for eunseo; will they be able to find out why he shrunk, and bring eunseo back to his normal size? and what will this do to their friendship?