Weapon: Sword - It is said a faint red light emanates from the blade. He bickers with Rocket often, but they are said to be inseparable best friends. He is passionate and positive, but apparently has zero talent for using his head. Though not related by blood to Medkit, they are said to have a family-like bond. - It's said Medkit tends to look after the innocent Sword from behind the scenes.

Weapon: Rocket He lost one arm in the past and had it reattached. - To be precise, it was replaced with a mechanical arm. He bickers with Sword often, but they are best friends. He is said to enjoy explosions. - The main culprit behind turning the house into a mess. Surprisingly, he is younger than Sword and has a complete elementary-schooler's palate.

Weapon: Probably Coils? - He switches between three types of coils, mainly using Speed, Gravity, and Regeneration coils. He was born with only the Gravity coil, but through modification and experimentation, he succeeded in synthesizing his current coils and even the dangerous Fusion coil. He is a master thief and a Robin Hood figure who robs Kobloks. He steals important crystals or information from Kobloks, or hacks their data to break in. - He has a warm side, such as distributing stolen crystals to the poor.

Weapon: Skateboard - It's a literal skateboard, but its top speed is 40km/h (average car speed; crazy). He was originally from the Sky Island of Windforce like Boombox, but was exiled and fell to the surface with Boombox. He became best friends with Boombox, the only one who helped him there, and would give his life for him. - Perhaps due to the trauma of falling from the Sky Island, he has a severe phobia of heights. He also seems to have a close relationship with Coil.

Weapon: Slingshot - The ammo... isn't exactly ordinary. He is Shuriken's biological brother and is said to have a mischievous and innocent personality. He also has a family-like relationship with Vine Staff. Surprisingly, he is very good with machinery, and his slingshot was personally modified by him. He is said to be more interested in cooking than fighting (though that doesn't mean he won't fight).

Weapon: Shuriken (Ninja?) - That fidget spinner-shaped thing, anyway, a shuriken. He is Slingshot's biological brother. He acts prickly on the outside but is a tsundere who takes good care of him. He also has a family-like relationship with Vine Staff. He disapproves of Rocket and thinks he is foolish for enjoying explosions and making a mess of the house every day.

Weapon: Since she's a healer, it's a bit vague to call it a weapon... anyway, a Vine Staff. She is said to like sprouts, flowers, and such, and is quite quiet. She is like an older sister to Slingshot and Shuriken, a kind friend who cleans up the messes the brothers make. She is acquainted with fellow healer Medkit and they are said to get along quite well.

Weapon: This one is also a healer. Weapon is a revolver? - He can use it for healing, attacking, etc. He was originally a brilliant scientist like Subspace in Blackrock Castle, but lost an eye to Subspace due to a dispute over the usage of a crystal they created together. Thus, that guy became his nemesis. He wears an eyepatch and met Scythe after joining the "Church of the True Eye." As the name suggests, he is a Medkit healer.

Weapon: Probably that crystal explosion? - Basically just bombs. He was originally a brilliant scientist at Blackrock Castle alongside Medkit, but caused Medkit to lose an eye during a dispute over the usage of a crystal they co-created. However, Medkit wasn't the only one harmed; Subspace suffers from a mysterious illness that causes his body to rot. Because of this, his body supposedly produces gas. - Consequently, he wears a gas mask, and the infection mainly affects his right arm and left eye. Ownership of that crystal supposedly belongs to Subspace. (Probably.)

Weapon: Boombox - Yes... the boombox that plays music. Yes, that one. He was from the Sky Island of Windforce like Skateboard, but was exiled along with Skateboard just for helping him. However, this event allowed him to become the Boombox he is today and form a deep bond with Skateboard. - It's presumed he loved music and carried a boombox even back on the Sky Island. He is energetic and selfless, but has a cute and kind side that feels upset internally because he can't be even kinder to people. - Thus, there's a saying that he is the 'kindest Infernal among the Infernals.' He also seems to have a close relationship with Coil.