Miss Rain — Chapter 2: Dreamy Rainy Button
34 pages, from Miss Dream, released Apr 27, 2018.
Volume 2
Description
A rumored girl seems that she can't graduate unless she takes extra classes and also pass the examination test with a 60. She thinks that there's nothing to do in the school, but while studying….she finds….
This is extra story can be also be found in the manga, Chocolate Christmas.