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You'll have to elaborate; not all of us are familiar with Senran Kagura. We've a whole index of Bisexuality Tropes, but the whole "informed bisexuality" detailed in the query makes me think of But Not Too Bi ("says they're bi but only ever dates one gender", see the "Actions on Screen" part)
I think But not to bi, works
The most extreme Example I can think of is a girl going around groping other girls boobs and talking about her love for boobs and women but the creators still push the idea that she either bi or straight.
I know it just cheap Fanservice.
it just weird thing I notice that seem to happen a lot in anime or Japanese games, a girl showing a lot of interest in girls but only showing interest in guys at the very last minute.
Edited by mortalpuncher

You know when a girl in a show who likes women and talks about her love for women and there body’s but still bring up she wants to date men despite showing no interest in men?