With Sakura Succubus 6 released, we can also announce that the Winged Cloud Sale starts right now as well, so if you haven't picked your games yet, maybe these discounts will help making a decision:
https://store.steampowered.com/bundle/15682/Sakura_Succubus_Bundle/
https://store.steampowered.com/bundle/5189/Winged_Cloud_Bundle/
https://store.steampowered.com/app/407330/Sakura_Dungeon/
https://store.steampowered.com/app/375200/Sakura_Fantasy/