Exclusive poll for a Patreons (Onee-san) (Patreon)

Onee-san, for those who don't know, is a Japanese word meaning "Big Sister".

In fiction there are many big sisters, more than I remembered. Especially in anime where there is an abundance of older sisters who are "very loving" to their younger siblings. That's why I thought it would be interesting to show some of that sisterly love with you,

I hope you like it.