I'm not going to explain everything you need to do step by step; just be faithful, and in the other one, don't be faithful to Rosette—that's how you'll discover the routes.
You have several options. One is to start a new game by skipping ahead to version 0.1.4.3; you can do this by skipping the prologue, and the game will then ask if you want to start at that version.
The second is to subscribe to Patreon to get the password for the cheat book, which lets you progress much faster throughout the game.
The third option is to have someone share a save file with you. You could ask on Discord if anyone has a save file from where you left off.
It has a processor that struggles with many games, and even though this may seem like a simple pixel art game, it has a lot of background scenes that also put a heavy load on the memory. Currently, it isn't 100% optimized for low-end devices, so try using the low graphics mode.
If that doesn’t work, I recommend playing on another mobile device or waiting for the final version, which I assume will include further optimizations.
I'm not the game's creator, but if you've taken a moment to read, before entering Stela's house, the game asks, “Do you want to bring Rosette with you?” and I think that implies that either something good or something bad could happen, depending on what you prefer.
As for saves, you can now import other saves if someone shares them on Android; you can do the same on PC, but if not, you can start a new game and skip everything up to version 0.1.4.3, which is already a big improvement.
In the game, you can experience NTR if you want, but if not, you can avoid it entirely and play the game at your own pace (that’s what’s recommended—LONG LIVE ROSETTE!) Also I'm not the dev, just in case
