Hyumi's Pocket Dimension

Hyumi's Pocket Dimension is a place in Jump-Strike.

Hyumi can make portals to this dimension and use doors to exit to other portals. He can also lock you inside a sacred portal for Hyumi's sins.

Hyumi's ability is known to be one of the "ultimate support abilties" as this pocket dimension is praised by himself and is used many times to get from places to places and to keep enemies here.

Regular Pocket Dimension
Hyumi's regular dimension is a white box with a door on the other side of the portal. In the dimension, he has a bed, a tv, a PS4, and games. He says he goes here occasionally because of his parents.

Sin Dimension
Hyumi has 3 keys, he uses these keys to make portals and lock whatever he needs to in the dimension. His locking the beast that attacked Koichoco School in the first arc is an example.