Because it looks like my main source of income is actually my trading.
And technically it kind of is because my job visa sponsor is a family friend with health problems who just hired me to help out while he gets ready to retire in 2 years. Job has a lot of freedom. Even though i actually intended to work full time, he usually lets me go after 2~3 hours of work. But this really shouldn't matter.
Immigration is likely also aware that this is something i am familiar with especially because i used to earn a living related to this before coming to japan and i had to submit my resume
And if it's not a problem this year (my first year here in japan), will it be a problem if i do it again next year?
I have the usual humanities visa. The trading is also done on a japanese account for 特定口座 so taxes should be already taken care of (i think)
by MagneticRetard