Chapter 3

Service Time (サービスの時間, Sābisu no jikan) is chapter 3 of the Assassination Classroom manga.

Short summary
A group of students spot Korosensei and pretend to befriend him before taking out their knives to attack him. Korosensei replaces their knives with flowers from the class garden by accident and promises to help them grow new ones. Nagisa starts to document Korosensei's weaknesses on a notepad. Meanwhile, Karasuma requests to become Kunugigaoka Junior High School's P.E. instructor. Upon entering the school hallways, he notices a sense of discrimination between class 3-E and the rest of the school. He then finds class 3-E outside with Korosensei hanging off a tree branch to apologize for destroying the flowerbed. The students nearly kill Korosensei when the branch breaks, but Korosensei manages to escape. Meanwhile, a previously suspended student is briefed over the situation in class 3-E before he is to return to that class.

Long summary
A group of students spot Korosensei during his afternoon snack eating shaved ice with ice from the north pole. Saying that they will split the 10 billion yen, they all pretend to befriend Korosensei, asking him for some shaved ice. Korosensei is so happy that he thinks his students are finally opening up to him and doesn't even mind when they pull out their knife's to try and kill him. Korosensei then removes the knifes from their hands and replaces them with flowers at mach 20 speed, say that their smiles were a little forced and didn't catch him of guard. Megu notices that the flowers are the ones that were in the class garden. Korosensei didn't notice and Tōka is upset telling Korosensei that was horrible after all the hard work they put into the garden. Korosensei feeling guilty goes to buy new plant bulbs imedently. Megu and Tōka then make Korosensei plant all the new plant blubs at normal speed. The other student watch and talk about how weird it is for Korosensei to be plant flowers when he says he's going to destroy the earth. Meanwhile Kaede walks to Nagisa asking him about the notebook he's writing in. Nagisa say that it's a notebook of Korosensei's weaknesses and that it could be useful in assassinations.