Main character
Tatsumi Sekiguchi関口 巽
- appearances
- 2
- appearances
- main roles
- 1
- main roles

Tatsumi Sekiguchi at a glance
Tatsumi Sekiguchi is a main character in Mouryou no Hako. Tatsumi Sekiguchi is voiced by Hidenobu Kiuchi in Japanese.
Tatsumi Sekiguchi: quick facts
- Anime
- Mouryou no Hako
- Role
- Main character
- First appearance
- Mouryou no Hako (2008)
- Latest appearance
- Mouryou no Hako Special (2009)
- Japanese name
- 関口 巽
- Japanese voice
Hidenobu Kiuchi
Who is Tatsumi Sekiguchi?
He's a novelist but, as his short stories don't allow him to live properly, he often works for the press. He was in the same college as Kyougokudou and hangs around with him. He's often teased by his friends in regards to his poor social skills. During the war, Sekiguchi fought with Kiba in the same regiment. While the details about this period are unknown, it is implied that Sekiguchi is a deserter who suffers from psychological disorders because of what he saw and did during the war. He has a wife named Yukie.
Biography excerpt via Kitsu.
Tatsumi Sekiguchi in numbers
- Favourites on AniList
- 9
- fans who marked them a favourite
- Rank in Mouryou no Hako
- #4
- of 25 characters, by favourites
- Appearances
- 2
- 1 as a main character
- On screen
- 2008–2009
- 2 years
Most-loved characters in Mouryou no Hako
AniList favourites
- Akihiko Chuuzenji54
- Reijirou Enokizu26
- Atsuko Chuuzenji10
- Tatsumi Sekiguchi9
- Shutarou Kiba7
- Yoriko Kusumoto4
- Kanako Yuzuki3
- Youko Yuzuki1
Show as table
| Item | Favourites |
|---|---|
| Akihiko Chuuzenji | 54 |
| Reijirou Enokizu | 26 |
| Atsuko Chuuzenji | 10 |
| Tatsumi Sekiguchi | 9 |
| Shutarou Kiba | 7 |
| Yoriko Kusumoto | 4 |
| Kanako Yuzuki | 3 |
| Youko Yuzuki | 1 |
Appearances by format
2 titles in total
- TV Series1 · 50%
- Special1 · 50%
Appearances
More characters from Mouryou no Hako
Tatsumi Sekiguchi FAQ
What anime is Tatsumi Sekiguchi from?
Tatsumi Sekiguchi is a main character in Mouryou no Hako and appears in 2 titles in total, including Mouryou no Hako Special.
Who voices Tatsumi Sekiguchi?
Tatsumi Sekiguchi is voiced by Hidenobu Kiuchi in Japanese.
What is Tatsumi's full name?
Tatsumi's full name is Tatsumi Sekiguchi (関口 巽 in Japanese).
When did Tatsumi Sekiguchi first appear?
Tatsumi Sekiguchi first appeared in Mouryou no Hako (2008) and most recently appeared in Mouryou no Hako Special (2009).
What is Tatsumi Sekiguchi's Japanese name?
Tatsumi Sekiguchi is written 関口 巽 in Japanese.
Where can I watch Tatsumi Sekiguchi?
Open the Mouryou no Hako page for licensed streaming links and the full episode list.













