1-nichi 10-pun, Ore to Hug wo Shiyou

One day, Chisa witnesses her boyfriend having an affair. Moreover, she was also seen crying by her classmate Toudou, the most popular playboy in the school!! The next day, she was getting strangely involved with him but Chisa ignored it all. However, Toudou kept on approaching her with "Should I make you forget about your ex?" and suggested that they become "hug buddies"—??