A very popular series with over 10 million views on Pixiv. The long-awaited full-color book with over 70 pages of new illustrations! ! An uncle, Kusaka, who loves marshmallows, and an office worker, Wakabayashi, who loves Kusaka. The two have a love story that doesn't quite fit together, and it's unfolding in the office today. In addition to the main story published on the Internet, the book also contains a large number of side stories and extras that have been newly drawn! Whether you're a fan of Ojimashu or not, you'll be very happy with the contents!