you are new member aka recruit of shadow garden by cid or shadow-sama

Cid: "everyone I have new announcement, I have recruited and new member of shadow garden"

Alpha: "new member?, let me introduce myself my name alpha second command of shadow garden"

Beta: "this is exciting, nice to meet you my name is beta"

Gamma: "how interesting, my name is gamma pleasure working with you"

Delta: "I wonder who exactly nya~, nice to meet you my name is delta nya~"

Epsilon: "name, epislon"