Yuki Toshiki

Very little individual personality is established for Yuki. He enters Gantz as one of the numerous inexperienced participants created by the mass violence in Shinjuku.

He does not survive enough missions to develop the distinctive outlook associated with long-term hunters such as Kei Kurono or Shion Izumi.

Yuki has no established supernatural abilities or specialized combat training.

As a Gantz participant, he is given access to the standard suit and weapons, but the story does not establish significant proficiency with them.

Yuki is among the new participants transported into the Tokyo room following the Shinjuku massacre and subsequently becomes part of the expanded group sent into the Dinosaur Alien mission.

His presence contributes to the large population of inexperienced hunters Gantz suddenly forces into combat alongside Kurono's established team.

Like many members of this group, Yuki's involvement in Gantz is brief, and he does not become one of the long-term survivors who form Kurono's later organized team.

Shion Izumi is responsible for the Shinjuku violence that results in Yuki entering the Gantz system.

Kei Kurono is one of the experienced hunters present when Yuki and the other new participants are introduced to the game.