转一个F95老哥总结的现阶段角色设定
Bella: guaranteed main LI (Dom, Sub and normal routes, could be different now that the game has taken a less dark route, won't be compatible with Amber)
Nami: guaranteed main LI (Nami/Bella is possible but she is otherwise probably the least compatible with other girls, Nami/Mila not possible)
Sasha: guaranteed main LI and Ocean's #1 girl (as of August 2021), not planned to be part of any throuple
Sonya: guaranteed main LI and Ocean's #2 girl (former #1)
Mila: guaranteed main LI
Nadia: guaranteed main LI
Victoria: guaranteed main LI (and can be compatible with every other girl)
Nia: guaranteed main LI, wasn't originally a planned LI
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Amber: main LI (two main routes, love or sub, could be different now that the game has taken a less dark route)
Zara: main LI, solo route only, threesomes possible but no throuple ending
Vanessa: main LI (sub and dom routes)
Maja: formerly main LI, currently not planned anymore but under consideration
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Marla: "All Teachers except for Marla are only lewdable but don't feature more (Relationship wise) " sounds like potentially LI?
Ayua: "can be romanced", but also stated since then that she is not a LI, but she's a special case, it might change
Robin: "lewdable," very low chance of becoming a full LI
Layla: "lewdable" but will "never" be a full LI
Coach Hill: "bangable", "hook-up/lewdable" but no ending nor romantic relationship
Karen: "lewdable"
Nojiko: currently not a LI but nothing is ever set in stone...
Celina (Vic's therapist): not a LI
Elsa, Nicole, Genevieve, etc: ??? (nothing mentioned) the main LI list is not necessarily over yet although Ocean has a limit, and we might be introduced to some more girls (like the women's first team for instance)
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Note: As of October 16, 2021, Ocean has said that the list of LIs can be expanded to more LIs but it is also possible that some LIs will be dropped, except for the eight that are listed as guaranteed.
Note2: There will be no harem route. One was originally planned (although it would not have included every girl) but the game took a lighter tone, of healing, than was first thought, and the harem route does not fit the story anymore. You should still be able to bang virtually every girl in a playthrough but having a romantic relationship with several girls being aware of each other is a whole different thing. There will be throuples for the compatible girls, but no more than that. I have summarized this myself, if you want to hear from the source itself, most of the updated info regarding harem comes from here.
Update: only 3 throuples are planned as of summer 2022, there might eventually be more or fewer but that's to say that throuples will be rather the exception and in most cases won't happen.
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8大铁帽子LI不可动摇,我做了分割。然后,三人线正式确认的暂时很少,可以肯定就使Bella和Nami的,Vic相关的想在还没进入规划。Sasha已经不止一次提到过只存在单人线。Maja被降级了

,只能说希望未来能有姐妹线吧。比较意外的是Amber是正式LI线,这个是我之前没了解到的信息。