Season 1 and Season 2/3 code is incompatible right now. It will be solved with the rework I'm doing for the "Steam version" of Season 1 that also will be published here for the owners of the current Season 1 and new buyers. Since it will be sold in independent Seasons on Steam (like here or on Oppaiman) it would be unfair for buyers on other platforms (or those who already bought it) to sell it as a single game here (or any other platform). What I will do, when I am ready to publish Season 2 on Steam, is to do a bundle price for the two first seasons. On Steam and here.