Growing Up

1. Looking at You (바라보기)

2. Boo

3. Pitiful (가여워)

4. A Dreamer

5. Four Without Me (나 말고 넷)

6. Graduation Day (졸업하는 날)

7. Face to Face (After Looking at You) (마주보기)

8. You Know rock ver.

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IU...IM

1. Love Attack

2. Taking a Train (기차를 타고)

3. Marshmallow 2020 ver

4. Morning Tears (아침 눈물)

5. Heartbeating Date (두근두근 데이트)

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Nagging

1. Nagging (잔소리)

2. Rain Drop

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Real

1. This Is Not What I Thought (이게 아닌데)

2. The Thing I Do Slowly (느리게 하는 일)

3. Good Day (좋은 날)

4. The Night of the First Breakup (첫 이별 그날 밤

5. Alone in the Room (혼자 있는 방)

6. Merry Christmas in Advance (미리 메리 크리스마스

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Real+

1. Only I Didn't Know (나만 몰랐던 이야기)

2. Cruel Fairytale (잔혹동화)

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I U

Japanese album
1. Good day
2. Nagging (Ko・Go・To)
3. Rain Drop
4. Lost Child
5. Only I Didn't Know
6. Last Fantasy

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Ice Flower

1. Ice Flower

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