Tachikawa Squad

"Alright, listen. I'm gonna say something good. Look at our emblem. There are three swords, right? This first one is me, the second one represents Izumi, and the last one is... My second sword. In other words, you're still a novice, so no getting puffed up. [...] Kunichika, you're the crescent moon on the back."

- Kei Tachikawa to Yuiga in Masato Kageura.

The Tachikawa Unit (太刀川隊) is a team led by Kei Tachikawa. It is the Number 1 Unit on Border.

The unit's uniform consists of a long black coat with red vertical stripes somewhat similar to pinstripes and five straps to fasten it, and also black pants and boots. The unit's emblem consists of three katana blades in front of a crescent moon. According to Tachikawa, the first blade represents himself, the second represents Izumi, and the third represents his second sword, while the crescent moon in the back represents Kunichika, but he could be just playing with Yuiga.