Research Berau 2025

Hi! so i know there is a lot of topics on the RB, but maybe someone can help me out to optimize the process...

i know the Harugumo line is the cheapest to freeXP but i dont get the whole stacking thing.

i have reset this line once i believe and now have 2x..... if i hit the reset button now, will the multiplier bounce to 3x? Then, if i freeXP the line, hit reset again and get 4x? and i can do this over and over for the next 3 months (noted above the reset button), stacking +1x each time?

Thank you in advance for a TLDR :D

https://preview.redd.it/dhj453i1hbge1.png?width=1939&format=png&auto=webp&s=f47ec727a86510855608f1b1468c327026a1eb7d