Katsura, a second-year member of his high school archery club, struggles to manage his anxiety. His secret coping mechanism is Sou, his childhood friend and older brother’s best friend, whose embraces instantly bring him a sense of peace. However, Katsura knows he cannot rely on Sou’s comfort indefinitely. Just as he begins to worry about how he will cope without those reassuring hugs, his friend Kouichi unexpectedly offers to be the one to support him—and seals the promise with a kiss.