Unit 01 Wake Up! Unit 02 Back to School Unit 03 Lunchtime Unit 04 Mini - Series Unit 05 Happy Birthday! Unit 06 E-thanks Unit 07 Mi-na is Sick Unit 08 Getting Better Unit 09 Animal Tales Unit 10 Saving Energy Unit 11 The School Trip Unit 12 Feelings Unit 13 Chuseok Unit 14 Saying Goodbye Unit 15 Future Plans