My Miniature Life Manual

Eun-Seo and Myeong-Jin are two childhood friends who grew apart as they got older, but things take an unexpected turn when Eun-Seo gets a packet of jelly beans from a mysterious old lady. The next morning, Eun-Seo becomes the size of a little bean himself! However, the only person Eun-Seo can ask for help is Myeong-Jin. Life is suddenly so different for Eun-Seo; Will they be able to find out why he shrunk, and bring Eun-Seo back to his normal size? And what will this do to their friendship? (Source: WEBTOON, edited)