Shi Yunze is an orphan raised by the Huangguo Boxing Gym, and he grew up calling the gym owner's daughter, Ye Anni, his sister. She bandages the cuts on his face, yet the once-unstoppable boxing prodigy can barely meet her eyes—because the word "brother" no longer means what it used to. Former champion Chen Yanzhi has also buried his feelings for a long time, until one late night, when she brings ointment to tend his injuries, the words finally slip out. Two men—one her brother in name, the other her gentlest senior—both hold her in their hearts. And in the championship ring, what's at stake was never just a title belt.