Aomatsu (青松 Aomatsu) - the protagonist of, and currently only appears in, the OVA. He had met Tomoko Kuroki at the rooftop of their middle school when she left the door open with a key that fell from a gym teacher. At their meeting Tomoko invented a story about terrorist surveillance activities and expert in firearms, warning to Aomatsu not to return, initially seen in the OVA through his eyes. Later, the same events repeat through Tomoko's eyes.
When the gym teacher recovers the key and locks the door, the two never meet again in middle school. Aomatsu attends the same high school as the Kuroki's and appears to have become one of Tomoki's friends. When he literally bumps into Tomoko, neither recognize the other. Nevertheless, each still inwardly wonders about the person they met on the middle school roof.
As a middle school student In the OVA, he acts much like Tomoko: he appears a loner, looks at his peers with contempt, find his life boring, and has anime-based fantasies. By high school he appears to be somewhat more normal and well-adjusted.
Aomatsu has tidy brown hair and brown eyes. He wears glasses and is of average height.
Near the end of the OVA, Tomoki and Aomatsu are seen walking through the halls together. Aomatsu recalls that they went to the same middle school together. It is unknown if Aomatsu knows that Tomoko and Tomoki are siblings.
- "Lately, I can't avoid noticing how these people are complete ignoramuses. Do I really belong to this world?"
|Female Characters||Tomoko Kuroki | Shiki Futaki | Anna Haruna | Shizuku Hirasawa | Akari Iguchi | Hikari Itō | Megumi Imae | Asuka Katō | Kayo | Kotomi Komiyama | Mrs. Kuroki | Koharu Minami | Miyazaki | Nagi | Miho Narita | Yū Naruse | Hina Nemoto | Ogino | Akane Okada | Reina | Fūka Sasaki | Kiko Satozaki | Sayaka | Yuri Tamura | Mako Tanaka | Emiri Uchi | Masaki Yoshida|
|Male Characters||Tomoki Kuroki | Aomatsu | Art Teacher | Hatsushiba | Homeroom Teacher | Jun Ishimine | Kakinuma | Yoshinori Kiyota | Kosaka | Mr. Kuroki | Suzuki | Nico Tanigawa | Wada | Yocchan|
|Minor and Unnamed||Minor and Unnamed Recurring Characters|
|Manga Volumes||1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17|
|Anime Episodes||1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | OVA|