- Head manager of character licensing in book publishing (Korea region, 2012 Nov~2013 Aug)
- Head manager of character licensing in book publishing (Foreign region, 2012 Feb~)
- Business strategy setting and planning for new business
- Strategy setting in character book publishing in foreign markets
- Coordinating character book publishing. Currently working with publishing companies in 6 countries: France, Russia, Japan, Taiwan, Thailand, China
- Financial accounting, managerial accounting, sales analysis in Book publishing division
- Children's book publishing