About “Strawberry Marshmallow”
Strawberry Marshmallow is a Japanese manga series created by Barasui, focusing on the adventures of four elementary school girls and their older sister-figure. It started serialization in 2002 in the manga magazine Dengeki Daioh published by ASCII Media Works. The series was adapted into an anime television series and a PlayStation 2 video game in 2005. Three original video animation (OVA) episodes were released between February and April 2007. A follow-up OVA project called Ichigo Mashimaro Encore was released in 2009, consisting of two episodes. The manga's tagline is "Cute is justice." (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.