第 17 集: Hinano和Taiga進行準備，Lovro則訓練學生執行島嶼暗殺任務。
Prior to their trip, biologist Hinano Kurahashi helps Nagisa and the others hunt for bugs while pervert Taiga Okajima lays out his own trap for Koro-sensei using a pile of porn magazines. Later, Lovro is called in to train the students for their island assassination, taking interest in the class' two top marksmen, Ryuunosuke Chiba and Rinka Hayami. He tells Nagisa about the world's most infamous assassin, known only as "The Reaper," and decides to teach him a surefire assassination technique. The class soon arrive at their island resort, making all the necessary preparations for their assassination. After having dinner, during which Koro-sensei inadvertently uses up his emergency shedding technique, the class begin their assassination aboard an on-sea chapel. (Source: Wikipedia)
集數
- 第 13 集 · 鳥羽面對殘虐的替補體育老師，對方挑戰他的學生進行刀劍決鬥。
- 第 14 集 · 寺坂的暗殺失敗，反讓殺老師的泳池弱點被利用
- 第 15 集 · Koro-sensei 提供觸手射擊作為期末考試成績頂尖者的獎勵
- 第 16 集 · 3年E班與3年A班展開考試對決，爭奪觸手並立下沖繩度假賭約。
- 第 17 集 · Hinano和Taiga進行準備，Lovro則訓練學生執行島嶼暗殺任務。
- 第 18 集 · 學生們正面臨病毒威脅，而殺老師仍被困在無堅不摧的水晶球中。
- 第 19 集 · 烏丸與伊莉娜潛入有守衛的飯店，同時對抗煙霧與抓握
- 第 20 集 · Karma 躲避瓦斯攻擊，Nagisa 女裝偽裝以開闢通往 VIP 層的通道
- 第 21 集 · Koro-sensei 使用綽號讓 Gastro 感到困惑，而 Takaoka 則揭露了他涉及 Kayano 和解毒劑的計劃。