While carrying out his job, YAT finds that his teammate SAI is suffering from a sudden attack of asthma. He voluntarily helps him to carry out the job. On the next day, YAT finds that his teammate is still sick. He therefore helps him to carry out the job again and buys medicine for him. Later, YAT realizes that SAI is not sick at all and he is just lazy. YAT tries every means to educate SAI but SAI doesn't listen to him. YAT decides that he will not do the work for SAI anymore and the two fall out with each other...