Angel's Heartbeat

Yuzuru Otonashi (voiced by Hiroshi Kamiya) died and came to the world after death. After waking up, he found that in a school, a girl named Nakamura Yuri (voiced by Sakurai Harumi) asked him to join the "Intolerable Death Front" organization, referred to as SSS. Their mission is to fight the enemy, the representative of God, the student council president Angel Tachibana Kanade (voiced by Hanazawa Kana). Yuri is the leader of this front. As long as you resist the angels, you can continue to exist, and you can gain the world by destroying the angels. Otonashi, who had not yet recovered his memory, had no choice but to agree to join their organization, but he found that angels were invulnerable and they would not be injured or killed. The so-called enemies and battles are all directed against the angel Tachibana Kanade. Otonashi hasn't recovered his memory yet, and he doesn't know whether such behavior is justified. The truth is slowly revealed. Young people died early. Is it a malicious joke from God or another plan...