Through the introduction of a certain young hero, the people of Lugunica will discover how small their world truly is... Basically, Subaru is MCU Spider-Man, the Re:Zero cast is introduced to the Marvel Multiverse and Mandness ensue. Sounds fun, right?
After having dealt with the challenges of the Pleiades watchtower, Natsuki Subaru is summoned by an unknown deity to help fix some worlds from the fallen Natsuki Subarus. It is up to him and his allies to help correct these worlds.
Two people forgotten by the world, finding comfort in each other and ultimately peace. But the newfound circumstances have brought that peace into question.