Seven Mysterious Mansions: Shivery Smile (Reina Route #2) [English Translated] [Dreamcast 2000]
This run features the not infected scenario, which is just the infected scenario, but with fewer steps. Overall, being infected apparently doesn't matter and doesn't amount to anything.
Playing as Tanya does make sense because Reina is clearly unable to do anything during the gas scene, although you play as her for all of 5 seconds if you know what to do. Funnily enough, if you pick up the medkit as her in the room, she just keeps it.
The next part will be the finale of Rein'a route and following that will be one bonus video containing alt endings, death scenes, optional puzzles, and other stuff I felt like adding to it.
------------------------------------------------------------------------------------------------------------------------
Taken from the Wikipedia page:
Nanatsu no Hikan: Senritsu no Bishō (Japanese: 七つの秘館 戦慄の微笑, lit. "Seven Mysterious Mansions: Shivery Smile") is a survival horror video game developed and published by Koei for the Sega Dreamcast. It was released on January 20, 2000, in Japan. Plans for a western release were planned but later cancelled. The game is a sequel to the 1996 Sony PlayStation and Sega Saturn game Nanatsu no Hikan.
The player can control one of two characters: Kei and Reina. The game can be played in either first person, third person, or fixed camera angle (e.g. Resident Evil) views. Kei's levels are more action based, while Reina's are more adventure-based.
There is also a unique multiplayer cooperative mode where one player controls Kei and the other Reina (a feature not seen in survival horror games until the 2005 game ObsCure) This mode is different from the single-player mode, as it is much shorter and objectives, monsters, and events are all altered.
Friends Kei and Reina land on a mysterious island and search for their friend Ernest. But along the way, they encounter many different monsters in the different mansions they discover. It's up to them to defeat these foes, find their friend, and understand the mysteries of the island.