Do you gain weight right away if you eat a lot?

pu1. The weight goes up right away, but I don't think that's the weight

2019-08-15

OK

pu2. My weight goes up right away
It'll take some time to get to the countryside, so you can lose weight until then

2019-08-16

OK

pu3. Oh, good information

2019-08-16

OK

pu4. I think I gain weight after a week

2019-08-16

OK

pu6. I had to take it out in a week... I almost died because I didn't fall out after cheating day, but I managed to take it out after a week

2019-10-19

OK