Akira has similar character tics, similar weapon, similar ability, and suspiciously similar background story with Saki Izumi about being taught in the art of combat by her father and is currently separated from her siblings.
Confirmed in Episode 13 Part 1
Nitori and Mini
Nitori harbors secret feelings toward Mini, which explains why Nitori acted so nice to him compared to others. She had been infatuated with Mini since meeting him as a child and waiting for Mini to become adult so she could make him her mate, but then Mini x Okuu happened, so Nitori chooses to "withdraw coolly" and support them as she can for now.
Miniverse and Osana Reimu happens in the same continuity
In one of Miniverse's Paralogue, there is a Whole Episode Flashback where Reimu and Marisa were still small kids, and Reimu's mom made an appearance. Mima made a jab at Reimu's mother about covering her face with a box or a mask, and that is something Reimu's mother does in Osana Reimu fanfic.
