Tomomo's Abyss is the eleventh playable field in 100% Orange Juice. It is set in an unknown location original to the game. The map seems to be Tomomo's realm as implied by the name and due to the player fighting her as the final boss of each one of the main campaigns.
Tomomo's Abyss is a large board with a lot of alternate paths that allow the player to avoid specific encounters or drop panels. The map is designed to have players go through Encounter and Drop panels no matter what path they choose. It's a difficult map to go through thanks to the abundance of said Encounter panels, and the only healing in the map, the Home panels, are surrounded by them, causing some risk to players that have low HP or are escaping from other players. If a player decides to go on the outer route, they'll have to go over a Warp panel before they have a chance to making it into the inner route.
Wins: Most offensive characters won't lack Encounter panels, as they can just stick to the inner route and have more chances of landing on another player's Home, healing and levelling them up, on top of intercepting anyone that is going for their Home.
Stars: Any star collector will face some trouble as there will be Encounter panels no matter the path they chose and their home will be surrounded by them, as well as having a Drop panel in the vicinity. Having a good defense stat or defense and healing cards in hand will be a necessity to survive.
Any character with high attack such as Yuki or Star Breaker will be able to fend themselves really well.
Any character that is not prepared for combat like Aru will have a hard time in the map as the Encounter panels are many, Warp panels are scarce and paths are straightforward, making it harder to shake off any pursuer.
Cuties will have a very hard time here as they must always choose stars instead of wins.