These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Horror: The series concludes with the opening exchange of the final bout, which is a default level-1 match. Meaning, regardless which of them wins, the other will be subjected to public humiliation. Worse, Yuka is likely to be the winner, since she's defeated Satomi several times already. Think about that, then look at The Woobie entry at the bottom.
Instead, Reimi winds up facing off against the cyber drive enhanced Satomi, in an unsanctioned match. Just as she's on the cusp of victory Miranda activates the seed she implanted in Reimi's body, which binds her and saps her strength. Since she could no longer fight, Reimi gets eliminated from the competition, and Satomi is ruled the winner by default. Thus, she ends up being the one to face Yuka, in the final match.
The Woobie: Satomi was the primary example, having had a generally crappy life between her parents deaths, living in perpetual poverty while trying to support herself and her brother, Daisuke. Then being all but blackmailed into entering the VG tournament in order to save him, and finally being subjected to the Cyber Drive project.
Then the truth about Reimi's upbringing came to light, revealing she began as this trope, and eventually hardened into a cross between an Iron Woobie and an Iron Lady.