Phantom: Requiem for the Phantom - Season 1 - Eps 2: Training
Ein conducts personal training to Zwei after agreeing to work with Inferno for several days, ranging from sparring in martial arts to small arms use in order to hone his skills as a potential Inferno assassin in upcoming Inferno-approved missions. Claudia enters the complex right after Scythe Master picks up Ein without revealing her presence and tells Zwei about the objectives of Inferno, as well as to give "hope" to Zwei that he can find out who he is before she leaves him with a goodbye. Meanwhile, the Scythe Master deploys Ein in an assassination mission somewhere in the United States to kill a person of interest.
About Phantom: Requiem for the Phantom

Title: Phantom: Requiem for the Phantom
First Air Date: 2009-04-02
Last Air Date: 2009-09-24
Status: Ended
Rating: 7.2/10 (from 31 votes)
Language: JA
Seasons: 2
Total Episodes: 26
Network: TV Tokyo
Genres: Animation, Action & Adventure
Production Companies: BeeTrain
Synopsis
Mafia is rife in America where assassinations are a regular occurrence on the streets. Inferno, a mysterious company, is behind most of these dealings through the use of their near-invincible human weapon, "Phantom." One day, a Japanese tourist accidentally witnesses Phantom's latest murder. Desperate to escape, the tourist hides in a secluded building. However, Phantom, revealed to be a young woman named Ein, and the leader of Inferno "Scythe Master" captures the tourist and brainwashes him. Given the name "Zwei," this once peaceful tourist is now a puppet of Inferno with no memories. Drawn into a world of lies, deceit, and violence, Zwei must fight to survive, hopefully to one day regain his memories and escape from this world where he is constantly on the brink of death.
Cast

Miyu Irino
Zwei (voice)

Ayahi Takagaki
Ein (voice)

Miyuki Sawashiro
Cal (voice)

Aya Hisakawa
(voice)

Isshin Chiba
(voice)

Akeno Watanabe
(voice)

Tomoyuki Shimura
(voice)

Ami Koshimizu
(voice)