Rika Nagae

The story revolves around three classmates who play simple hand games. One of the girls is good at games, but hates them as she always lost to her older sister and forced to do chores while growing up. Another girl is of American descent, but raised in Japan, and who only pretends to be bad at Japanese. Another girl usually observes their games, and loses to the other girls. (imdb)

Miyako Hoshino is a college student who is very shy around strangers. When her younger sister Hinata brings home her classmate, Hana Shirosaki, Miyako becomes enchanted by her cuteness and begins having her dress up in cosplay in exchange for snacks. The series follows Miyako as she grows closer to Hana, along with Hinata's other friends.

Hana, Hinata, Noa, Koyori, and Kanon are always good friends. Today, they are having a party at home with Miyako's homemade sweets! The flower-shaped cookies look just like the hair ornament worn by Hana. The ornament was a precious treasure that Hana received from her grandmother when she was little, and everyone was intrigued by the story. As "practice for the school trip," they decide to go visit Hana's grandmother's house! The "first" outing for everyone is about to begin. (myanimelist.net)