itch.io

Talk to her, and there will be a option ''comand''. Click ''About your food consumption'', and you'll figure out what to do now.

I think it's bcause your inventory is full so you can't steal the armor, beat her and sell the items you stole.

Cook a dessert and give it to her (it seems she likes sweets), or command her to eat something from the refrigerator. If you're having energy problems, command her to make something for herself. (She'll look tired while she's starving) Hope these answers can help you slove the problems.

And sorry for my bad grammer, English is not my main language

It's quite simple, buy the skill book to learn how to steal. Next, steal everthing that the shopkeeper are wearing, and then sell them to buy sword(equip it then sell it, you will still have the sword effect), after that use all the remaining to buy hp potion. Lastly, attack the guard till she's only with little hp, steal all her armors(I started with helmet) and her clothes(all is stealable, last one is on her lower stomach. Enjoy your play!

When I reached 2 billion, the number of money turned into -19 billion.

And apologize for my bad English  grammer.