 If you liked
Sora wa Akai Kawa no Hotori
|
 ...then you might like
Planet Ladder
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Both stories feature a female main character who at first glance seems normal but turns out to be tied to direct the fate of their respective storylines, with Planet Ladder focusing on the entire universe and Red River focusing on the future of the Hittite Empire. Both stories have a very similar vibe in which the resolutions of each mini-conflict get resolved and present those conflicts in different settings.