Haru wo Daiteita features the captivating characters of Kyousuke Iwaki and Youji Katou, who both work as adult film actors and are determined to elevate their careers. After competing for a prominent role and losing to Iwaki, the two spend time together, which leads Katou to develop feelings for his colleague. However, Iwaki is reluctant to reciprocate. When a gay actor arrives in Japan to act alongside Katou, it creates complications that force both men to confront their true emotions.