Three Houses' writing is weaker than that of Disco Elysium, but much stronger than Persona 5 (which I found to be very weak). I'd put its storytelling as slightly below that of Xenoblade 1 and its character writing as slightly above that of Xenoblade 1.I'm really looking forward to Disco Elysium for this reason, but I can still enjoy a story on the level of Persona 5/Naruto. Is Fire Emblem Three Houses not around that level?