Impulse disorder patient Icheon fantasizes about playing with his brother Yucheon in the hospital. But to those who don’t know about his fantasies, Icheon is just a strange boy. His mother struggles with paying the hospital bills, and barely gets by, receiving help from her husband’s friend.
| Actor | Role |
|---|---|
 Lee Tae-ranMom | Mom |
 Cha In-pyoPotter | Potter |
| CCho Wang-byeolYucheon | Yucheon |
 An Min-youngIcheon's teacher | Icheon's teacher |
| YYang Won-seokManager of a store | Manager of a store |
 Han Sang-chulYucheon's Doctor | Yucheon's Doctor |
| KKim Hui-sukIcheon's doctor | Icheon's doctor |
| OOh Seong-taeSoldier | Soldier |
| LLee Sae-byeolSocial worker | Social worker |