Whenever a new video game is released in Japan, gamers band together to check something: Character underpants.
The ability to see up female character skirts in-game is certainly fan service, and depending on the developer, there might be some of this fan service (see Super Smash Bros. Brawl) or there might not be much at all (see The King of Fighters XII).
Resonance of Fate, known as End of Eternity, has this underwear fan service in spades.
As Kotaku previously posted, the game offers a plethora of costume options. At least one of those options, for better or worse, offers an eyeful. For those who plan on picking up this game, take this post as a warning so you don't accidentally pick the underwear skirt. That would be just horrible.
２ちゃんねる掲示板へようこそ [2ch]