| Circle Title | Have a nice day! |
| Circle Name | Love at 9℃ |
| Writer 1 | Itsuki |
| Writer 2 | |
| Writer 3 | |
| Writer 4 | |
| Writer 5 | |
| Genre | others |
| Main Character1 | Kamonohashi Ron |
| Main Character 2 | Isshiki Tsuzomaru |
| Main Character 3 | |
| Main Character 4 | |
| Main Character 5 | |
| Date of issue | 2023/11/23 |
| Type | Doujinshi - Manga |
| Size | A5 / 24p |
| First published event | 2023/11/23 COMIC CITY SPARK 18 |
| Series (Doujin) | Kamonohashi Ron's Forbidden Reasoning |