What if there are other people in there. Her family? She might very well attack us if we just break in.
If she's so bad that we need to break in, her family and the other people might die if we don't.
How can we convince Ono to come out, if she only shuts us off?
Do you think we could knock and convince whoever answers that we're friends making a visit? we could be stepping on social landmines, but... Maybe?
[X] To Homura: "Thoughts?" Prod her to talk if she seems she wants to say something, but not too much.
[X] When you find her, remotely check Ono's Gem and Seed's grief levels; if she's doing fine grief-wise, go back home. Apologize to Mami and Homura about the waste of time, and ask about the 100m range on your abilities on the way back. Help Mami with her homework if there's still time, and ask Mami if Homura can stay over the night.
[X] If Ono's grief levels are critical, coridally ask her to meet you outside. Insist as much as necessary.
-[X] If she doesn't cooperate, inform her that the grief in her gem doesn't only affect her thought, leading to magical depression, it also feeds into itself, growing exponentially. She should always keep her Gem less than a third full, if she can help it
at all.
-[X] If she still doesn't give, tell her if her Gem ever fills up completely with grief, she'll die.
-[X] If she
still won't come out, give her a five minutes warning that you'll knock and come in or break in or whatever you need to do, and cleanse her grief forcefully.