Dou Danjo!?

One morning, Satomi wakes up late for school. As she starts running to school, she crashes into Keshi. After staring at each other, they realize that they have switched bodies! Now Keshi is in Satomi's body and Satomi is in Keshi's body. They decide to live their lives in each others' bodies until they can fix their problem. But things start to get complicated when Mariko, Satomi's best friend, tells Keshi, who is in Satomi's body, that she likes Naoshige, Keshi's best friend. Since Keshi likes Mariko, he has no idea what to do about the situation.