As you complete quests for either 'side', you will get +amity and -amity to the faction.
Focus on one factions boss knowledge first (The otter is only 100ish amity).
Do the faction based quests for +5 amity to reduce your game energy expenditure.
Once completed, move to the other faction and do their daily's. 199 Required by Papuraora.
Additional 50 Energy required to gain the knowledge.
the quickest way of gaining 199 amity is by pressing Esc then 1, until in the amity game menu you will see "spark interest 1 time" or "talk freely" then just choose 5 random knowledge and you will gain 99% at least 1 amity.
It will work because everytime you enter amity game menu the requirements on the left will change.
Then repeat until 199 amity
PS: the only downside, it will consume energy everytime you enter in amity game, so just prepare 2/3 alts with full energy in case you want to finish it in couple of minuts.