| Description | Character |
| This ghost-girl hands out starfish that she carved to others at school in order to get them to come to her sister's wedding | |
| She is the residential manager of the boy's dorm and takes in a stray cat that likes the main character | |
| The younger twin who is shy and has a crush on the main character | |
| She is the younger sister of the main character's delinquent best friend who wants her brother to care about her like he used to | |
| A former singer, he is now an electrician who later trains the main character | |
| The main character's grandmother who explains how the main character's father really was not as bad a father as he thought | |
| The older twin who is very aggressive and often throws books at people who make her angry | |
| The main character's best friend, he is a delinquent who was kicked off the soccer team for fighting as a first year student | |
| She is a frail, Dango loving girl who is repeating her third year of high school for the second out of three times when she becomes friends with the main character | |
| She is a genius girl whose parents who were trying to discover the Hidden World died when she was young | |
| While this boy is really dead, his cat who becomes a human grants one wish to the girl who will be the residential manger for the boy's dorm | |
| The male protagonist who is a delinquent but helps re-establish the theater club with his future lover | |