During our high school lives, we may hold different opinions and see the world from a different perspective. If without the guidance of our parents or guardians, we would've believed that we ourselves are the definition of "justice" and carry out any actions we deem to be necessary in order to upheld justice. This anime is the manifestation of what I just described

The mc, Otonashi Yuzuru, finds himself on the floor of school grounds when he woke up. A girl standing in front of him, Yuri Nakamura, told him that he was dead while aiming a sniper at another girl. Yuri explained what was going on but Otonashi could not believe her, so he decided to walk over to the girl who Yuri was pointing a sniper at. After being told the same thing as what Yuri said to him, "You cannot die because you are already dead", Otonashi did not believe her and thus told her to prove it. Later, he wakes up in the school infirmary, remembering that something had pierced his chest, he looked over to his right to see his shirt covered in blood but his chest with no holes. This is the start of a misunderstanding that would eventually be the answer for everything

Survival instincts. When we feel pain we will naturally dodge it, and when the source of that pain is not a lifeless object but a live being, we will naturally recognise them as our enemy. Without any logical thinking or rational behavior, we would disregard what they say, their actions or the change in their behavior because our survival instincts will take control of our mind and prevent us from getting killed. Combine that with the foolish minds of a high schooler and a world with no one other than themselves to judge what is right or wrong, and you get a system with many vulnerabilities

Believing that them themselves are right, the team who named themselves the "I Don't Want To Die Battlefront" fights against a being they call "Tenshi". She is a being with angel like powers who governs the world and everyone is scared of her because of the first experience they had with her. They continue to rebel and fight against her with the goal of taking the world as theirs. They keep fighting and fighting while clinging onto the precious thought of reliving their former precious lives in this world. Not building an idea of the world that they are in through proofs but through their own interpretation of what they have seen. Anyone sane person with a rational mind could tell the truth behind the world they live in but being irrational closed minded high schoolers, they continue to live in their own deceive

This is a beautiful anime, although from the start it might feel weird as most of the times the anime mixes comedy in with drama causing the sickening feeling like when eating something cold after something spicy. However as the episode number grows, it starts to take itself more seriously and although with some unexplained things and some plot holes, it ended on a beautiful ending