You're referring to the popular manga and anime series "Tokyo Ghoul"!
Marcus was a data archaeologist. He haunted eBay for old development kits, scraped dead GitHub repositories, and spent his nights in Discord servers dedicated to "lost media." His white whale was Jail. He’d played the Japanese import with a wiki open in one hand and Google Translate’s camera on his phone in the other. It was exhausting, but even through the mangled machine translation, he felt the story’s weight. Rio’s anguish, the twist that he was a half-ghoul created by Dr. Kano as a prototype for Kaneki—it was essential lore.
Recommendation for Users: For English speakers wishing to play the game, the best course of action is to acquire a Japanese copy of the PS Vita cartridge (or utilize emulation on compatible hardware, where legally permissible) and utilize the Michi translation guide available on community blogs (such as Tumblr) or follow a subtitled YouTube playthrough. Tokyo Ghoul Jail English Translation
Case examples (generalized)
The climax reveals the tragic connection between Rio and the entity known as Jail, often leading to a bittersweet or tragic conclusion that ties into the larger lore of Tokyo Ghoul: re Key Characters You're referring to the popular manga and anime
Conclusion
The Dark Reality of Tokyo Ghoul: A Reflection of Societal Issues He’d played the Japanese import with a wiki
Here is the current state of the hunt for the English patch: