Details, details, details. Sorry I'm a forgetful son of a bitch.
Gray & Grey: so both of them have woren mask through this whole time, however there's abit of a difference between the brothers.
*Gray wears a mask that only covers the upper portions of his face only allowing us to see his lower face. The mask seems to be made up of white porcelain with a variety of paint filling the eyes ranging from black to grey, yet it's expression changes along side grays emotions, the expressions are shown mostly through the the eyes and it's colors. While Gray was fighting his grandfather his design is mostly the same with the exception of his mask color being orange and his lack of a robe and gloves, allowing us to see his carrying some of his arsenal; he carried a pouch that was fitted on his waist, a black wooden staff, viles strapped around his chest, and a tattoo on his left hand. Gray has yet to show us all of his bag of trick but just wait he will show us everything one day.
*Grey wears a mostly nano tech armor, in the form of a shark namely the great white shark more so by the helmet wear his face is located in the mouth. We don't see any expressions as it is all black except for Greys eyes. While Grey was fighting his grandfather his helmet was different and his nano tech suit as well, it was in a pitch black mode with his mask having yellow eye covers, it was more of a cyber suit meant to be for covert missions. And when his grandfather cracked his helmet he gave him the new model he currently wears, grey has yet to truly discover everything he can do with his new and old equipment. Grey also has a liteny of weapons, martial arts and techniques.
The grandfathers
*The maternal grandfather of the boys taught everything he knew to Gray. Nicked named after odin was a powerful mage named after the all father, like the Norse myth Odin is intelligent, and strategic, utilizing powerful magic along with weapons. Odin has even creating his own powerful spells. Odin was last seen with shroodinger his fate is still unknown, but wherever he is, he's just happy he got to spend all of his time with his grandson.
*The faternal grandfather he taught Grey everything he knew with science, engineering, and martial arts. Nicked named after the monkey king, Wukong. He was a powerful fighter, who had a mischievous nature, but unlike the monkey king, Wukong is a foul mouth, intelligent, old man who uses all sorts of weapons most of them were invented by himself. Wukong was last seen with shroodinger, his fate unknown. Although he'd never admit it he truly did love his grandson.
Chelsea: As said she is from a high class family, who have some deep connections, known for there long ranged assassins, using snipers rifles, rifles, cross bows, bows, etc. Chelsea herself carries her Kit-T (kitty) a rifle that she treats as a close companion. Her personality might lead you to underestimate her but one should always be wary of a trained sniper.
Drew: at first glance drew may seem like a child but he is far from it. Drew the druid is roughly 1000 years old and with his age he's has had all sorts of experiences, and has an adept insight of his own abilities, and other people state of mind, by perceiving them in a magical sense. He grew up alone with no one aside from the forest and nature.
GM: Not much is know about the Guild Master, but what can be said is her shoot first ask questions later personality her unapologetic deminer and her tiger like choice of clothes, with all that has been said and done she appears to have a deep connections to the boys even knowing their family names. The GM is the founder of the Reapers guild and she has been running it for 29 years, and yet in such a short amount of time they have gone from a no name assassins guild to one of the strongest guilds.
This is a small bit of detail I forgot to add but I still wanted to include and if you want to learn more about the other characters like pep, Cole, fana, the attendants, etc. please feel free to reach out but until then this has been Error0, signing out.