Memory Thief, Steal the Truth or Save Yourself

In the future, a lone "memory thief" makes a living by stealing and selling other people's precious memories. Once, he accepted a sky-high commission, and the target was the ultimate memory of a dying scientist. When he sneaked into it, he discovered that the protagonist of this memory was actually his young self, a past full of love and betrayal that he had completely forgotten. He must make a choice before his memory collapses: steal the truth or save himself.