|“||I'd like to watch Four-Eyes a little more. To me it seems... there's something a bit different about him all of a sudden.||”|
Tsutsumi is a light-skinned, moderately tall young man of medium build. He has short, spiky hair styled in a buzz cut with long sideburns and eyes so narrow that they appear to be always closed. His lips are often curved in a faint smile, giving him a kindly, approachable air. He has been seen wearing a zipped jacket over a black shirt as part of his casual clothing.
His Squad's uniform is composed of an olive green jacket with black lines around the hem, the zipper, and the high collar, and white ones running along the outer side of the sleeves and around the middle of the collar. There are two piped patch pockets closed by the same flap on each breast, and the B-rank logo is emblazoned above the left one while Border's is located on the outer side of both sleeves a little below the shoulders. The uniform also includes headphones that Tsutsumi wears around his neck, an azure striped shirt with a round neck, grey pants, a black belt with a dark grey pocket on the left side, and dark grey boots with black spats.
Tsutsumi is a calm and congenial person with a penchant for friendly bets. He is tidy, perceptive, considerate of others, and does not hesitate to reflect on his mistakes in order to ameliorate himself.
- (To Kōtarō Suwa) "I'd like to watch Four-Eyes a little more. To me it seems... there's something a bit different about him all of a sudden."
- "He's fast! But we already know that you can move like that."
- "When an Attacker has a hand free I should always assume it's a trap!"
- (To Suwa) "He's seeing through our attacks. It's like we're fighting against a really good human...!"
- Tsutsumi likes Japanese sake, takowasa (an octopus snack had with alcohol), and historical fiction.
- He has a driver's license.
- The author joked that if Tsutsumi opened his eyes, Border's Hottest Men Ranking would change.
- Due to the frequency with which he feels ill after trying out Kako's fried rice, Ashihara described their relationship as "suspect" and "victim".
- World Trigger Manga — Chapter 87 (p. 9)
- World Trigger Manga — Chapter 91 (p. 12)World Trigger Anime — Episode 41World Trigger Manga — Vol. 11 (p. 12)
- World Trigger Manga — Chapter 89 (p. 15)
- World Trigger Manga — Chapter 36 (p. 5-6)
- Volume 6 Character Profiles
- World Trigger Manga — Border Briefing File (p. 160)
- World Trigger Manga — Border Briefing File (p. 162)
- World Trigger Manga — Chapter 46 (p. 2)
- World Trigger Manga — Chapter 89 (p. 12)
- World Trigger Manga — Chapter 129 (p. 6)
- World Trigger Manga — Vol. 6 (p. 68)
- Daisuke Ashihara: Q: Is there anyone of 18 and above who has a driver’s license for a car or a bike? A: Aside from Reiji who has already driven in the story, it seems Fuyushima, Azuma, Suwa, Tsutsumi, Kako, and Kakizaki have normal driver’s licenses. The top brass and Sawamura have licenses too. Tachikawa doesn’t as you might expect. Zoe has a motorbike license, and Kage and Tōma have motorized bicycle licenses. It seems Arafune and Hokari want motorbike licenses too.
Source: Question Corner 15, Volume 20
- Daisuke Ashihara: Q73: What will happen if Tsutsumi-san opens his eyes? A: Border’s Hottest Man Ranking will change.
Source: Border Briefing File, Question 73
- Daisuke Ashihara: Q121: What is the relationship between Kako and Tsutsumi? A: "Suspect" and "victim".
Source: Border Briefing File, Question 121