Yes I have studied that option. But now i am not sure about it. I have contributed via nutaku given that i think that if all players contribute a little we can help a lot.

However, for instance i spent last event my 900 kobans to obtain a standard girl instead of an event girl (i wanted Bunny's mother for instance). Then my thought is that if I am in patreon and in events i feel, in some way bad/disappointed/frustrated (even knowing that it is related to probabilities) i do not know if it is wothwile.

Nevertheless, it is something that i keep in mind.