大胆 can mean bold, daring or audacious, while 小心 means timid or cowardly. In effect, this likely means Marisa is timid at heart, but wears a bold/daring mask.
The Witch of Contrasts? Has some Umineko ring to it...
Weird.Has this been happening a lot?I don't know who it is, though.Hunh?Bold, Timid Human
Kirisame MarisaEh, someone keeps offering weird stuff to the shrine.Freewheeling Human
Hakurei ReimuIt always happens while I'm not watching.Weird, but handy.There's been a lot of sake offered, though.Yeah.