My Death-definite Love Game with Them

By chance, Toru Narumi gets a love simulation system. As long as he works hard to play various roles in the simulation and defeat NPCs, he can get rewards and change his life as an unknown person. But the premise of the game is that he will definitely meet his death at the end. He elopes with the seriously ill Yukinoshita Yukino, escapes from the hospital, drives along the road to the sea, and finally gives his pancreas to Yukino, leaving her to live alone. He and his younger sister Eriri stage a body-swap love comedy, are forgotten by everyone at the midsummer fireworks festival, and embrace in a deserted town. The rain of meteorites confronts the band. A socially anxious bully dies suddenly in Yamada Ryo's arms on the eve of the band's rise to fame. It's only then that people realize he was solely motivated by his desire to help Goto Ichiri, who drifts apart from his childhood sweetheart, Sakurajima Mai. After she's cursed with reverse growth, he takes it upon himself, their lives intersecting in opposite directions. But after escaping the game's death ending, he feels something's amiss. Lover, brother, childhood sweetheart, what happened to the supposed setting in a simulation? Why did you all take it so seriously?