|Katagiri Yuuma片桐 祐馬|
|Body||Average Height, Pale, Slim, Teen|
|Clothes||Jeans, School Uniform, Shirt, Sports Shoes, Sweater, T-shirt|
|Personality||Ambitious, Carefree, Donkan, Friendly, Honest, Honorable, Idealist, Idiot, Kind, Naive, Ore, Sleepyhead|
|Role||Childhood Friend, Classmate, Eleventh Grader, Kouhai, Rival, School Committee Member, School Committee President, Senpai|
|Engages in||Basketball, Cooking, Photography, Singing|
|Visual novels||Protagonist - Hatsukoi 1/1|
Yukino's childhood friend, with whom he spent his first year of high school in the same class and Runa who just arrived at high school. Like his friends Mitsukuni and Kaoru and many other high school students, he is a great admirer of the pretty president of the student council, Makabe Midori and a huge fan of the actress Saeki Rion.