Koi, Sang Tian, is a lucky girl. She lives a dual life with her figure-skating and hockey-playing and fills in occasionally for her brother - but gets away with it all.
Sang Tian and Wen Bing are punished for cheating on the exam. Sang Tian sees Wen Bing and Meng Na together and mistakes their relationship. Sang Tian gets everyone together to help an injured teammate.
Coach Ma and Coach Xue run into Sang Tian at the same time and her gender switch is revealed. Coach Ma tells her that she will be expelled but that she has to keep the information to herself until the result comes out.
Sang Tian keeps her word and doesn't talk about leaving but is conflicted about saying goodbye and how to say goodbye to Wen Bing. Coach Ma makes a decision that gives Sang Tian an opportunity she wasn't expecting.
The time of the meet gets moved forward several hours but the Seniors deliberately don't notify Wen Bing or his team. On the ice the Seniors play aggressively and a player ends up in the hospital.
Sang Tian attempts to have a day out as a girl with her best friend. On strict instructions from Coach Ma, the team leaves Wen Bing behind when they go on an outing together during a break from school.
Shen Weilian is disappointed when he doesn't get Sang Tian as a partner in fruit-picking. Wen Bing makes a third in the triple room with Shen Weilian and Sang Tian. Wen Bing lets slip that Sang Tian has a girlfriend.
Shen Weilian freezes when facing his big brother on the ice and loses his overall confidence. Sang Tian tries to comfort and encourage him but in a rage challenges his MVP brother to a one-on-one match.
Sang Tian's challenge is accepted - for an unknown reason. An accidental kiss has Wen Bing questioning his sight and his feelings. Meng Na gives dating tips to her brother. Shen Weiling makes a discovery.
A mishap with the freshman jerseys leaves Wen Bing at a disadvantage on the ice until Sang Tian figures out an impulsive fix. Now she has to figure out how to explain it away.
A quick peek at an id card reveals Wen Bing's birthday is the next day so Sang Tian organizes the team to surprise him. Cheng Minjun's attempts to apologize and win over Coach Ma continue to be thwarted..
Revision takes over their lives as they desperately cram for a test but distractions abound. For Wen Bing, it's stopping Shen Weilian from confessing to Sang Tian.
Shen Weilian plans to confess. Wen Bing plans to confess. Meng Na plans a comprehensive date for after the photo session. Sang Zhan deliberately misrepresents himself. Sang Tian gets confused.
Meng Na finds out Sang Tian is Sang Zhan's sister and storms off - Sang Zhang tries to win her back. On the way to rescue them Wen Bing ends up in the hospital. A visit from his grandmother reveals a past connection they didn't remember.
Without her student id (as a girl) Sang Tian cannot get in to see the important university match - until the team captain makes an interesting choice. Tidy endings for everyone.