ow can I see C-Base 01 and C-Base 02?
First you need to meet the ??? ( black Hole girl ) at night at the school inside the classroom. there can be a black hole then not out of school then go back in.
You need to make her cum and then you need to escape her.
After it go to Fumiko and not escape ! until at the night scene you get the message about some cold air.
Now make her hard at the afternoon, then come the ??? ( black Hole girl and you get the scene.