It is possible if one of the following cases applies to you. However, after the change, the person in charge of your training must meet qualifications. 

1. When the person in charge of training has taken a leave of absence or retired due to the reasons stipulated in Articles 41 to 45 of the Personnel Regulations

2. When the person in charge of training takes the training course according to Article 14 of the Education and Training Operation Methods

3. When the person in charge of training determines that it is necessary for thesis guidance, and requests the HR Department to change the person in charge of training. However, except when 6 months have not passed since the initial training start date or after changing to another person in charge