The aftermath of quittng a job

I am sorry if this is asked often here, I am new to this forum and it is possible I may just have not seen a newer version to this question. The last answer I had found was from few years back so things may have changed since then.

I moved to Japan a couple of months ago under a work visa sponsored by a Japanese company. I had quit a month later for reasons I will not go into. My residence card is valid until next march so I thought I could live here until the expiration of my visa. However, I just was informed from a friend that I was supposed to notify immigration about quitting my job which I did not do because my previous company never told me to. I also just found out I had 3 months to find a different job or else my visa will be revoked, I have been working part time for school in my area and doing private tutoring the past few months. Will this be enough to prevent my visa from being canceled?
Another question, how was I supposed to know all this I was never informed and checking Japan's visa doesn't mention this either as far as I have read.
Lastly, I have a full time job that I starts in August for a school would this be acceptable to stop my visa cancellation?

Sorry if this post seems sporadic my deadline for the 3 months is coming up in about a week and I am very worried since I just found out about all this information.

how was I supposed to know all this

http://www.japaneselawtranslation.go.jp/law/detail/?id=173&vm=&re=&new...

http://www.immi-moj.go.jp/english/

In addition Read above., the dumb down version.
Do not assume/thought...

Any changes related to your resident status, you need to notify immigration within 14 days.
If you cannot/don't engage in activities related to your status within certain period , the immigration/ministry of justice have the right to start procedure to revoke your status.

So first and foremost, drag yourself ASAP to immigration office, inform them about the changes and be very apologetic about it. Your ex-company may or may not informed the immigration about your employment. This may also affect your future visa/status renewal.

I have been working part time for school in my area and doing private tutoring the past few months.
This you need to be careful, as the work you are doing now, does it fall under the same activities allowed to your current resident status? What resident status do you have now that expired next March?

I have a full time job that I starts in August for a school<i/>
Again be careful, your current resident status .. does your new future job fall under activities allowed to your current resident status? You may need to change your status ..

Without much information to go on, can I assume that you are either under Instructor or Specialist.. ?
Both have different requirement and scope of activities, i.e.
ALT in public school normally fall under 'Instructor'
AND
Language Instructor at Eikaiwa/foreign language schools fall under 'Specialist...'

https://blog.gaijinpot.com/visa-basics-instructor-versus-specialist-in...

from my experience, the previous post is bullshit. Do not worry.Just get another job and pay your taxes and you will be fine.It is not absolutely necessary for you to go to immigration. Your visa will not be revoked.

From my experience, any one individual's own experience is a poor predictor of what will happen to someone else, as the immigration authorities have a lot of discretion to handle each case as they see fit at the moment.

I think you just contradicted yourself...
Anyway, more importantly,Con your visa will not be revoked...it is good until the expiry date

...also Con, if you do go to Immigration,it might not be a good idea to say that you have been doing private tutoring...i am presuming it is cash in hand...

Probably best is to talk to an immigration lawyer.
You havenft followed the law by not informing. Depending on what kind of resident status you have (you didnft write it) you might have been working illegally in the last weeks/months.
Advise from an Internet forum isnft the best if itfs about such important issues as residency in a country. You donft want to get deported because you believed what some anonymous internet poster told you on a forum. Right?

It is up to you how you want to proceed but note that law/regulation related to notification, engaged in non-related activities, revocation exist, and the authority can take action if they see fit to act..
Again, revocation of your resident status is the last resort and the process take awhile..

Article on visa/status revoke..
http://www.asahi.com/ajw/articles/AJ201810010028.html


Notification
http://www.immi-moj.go.jp/newimmiact_1/en/q-and-a_page2.html#q92-a

Penalty for non-fulfillment of notification
http://www.immi-moj.go.jp/newimmiact_1/en/q-and-a_page2.html#q109-a

Revocation of Status of Residence
Minister of Justice may revoke the status of residence
2.(v) .....failed to engage in the activity corresponding to that status and stays in Japan while engaging in another activity or with the intention to engage in another activity...
http://www.immi-moj.go.jp/english/tetuduki/zairyuu/torikeshi.html

The rule is that you need to inform Immigration authorities within 14 days of any substantial change that affect your status – if you are here on work visa/resident status, then leaving an employer falls under this, if you are here for example on spouse of Japanese national, then a divorce will be something you need to report, because they affect the foundation for the reason why you are here and allowed to be here.

Upon hearing that, Immigration might (or might not) start the revocation process. That is up to them.

In your case, since you quit after a month, Immigration gcouldh suspect that you might have used that employer to get access to living in Japan, while having other motives. (So have a concise reason ready in your mind. If the employer lied about conditions, for example, that would be one they would have to accept. Be prepared to explain a reason calmly.)
In addition you did not report the end of employment, so be prepared to state your case. (Firstly that you did not know about the required notification, and you thought a visa/resident status was fine left as it is until it expiry – it is not an excuse that you didnft know, but just be honest about it.)
When it comes to the question of what youfve been doing since then, which they are likely to ask, the only valid thing to say is that youfve been looking for another employer. If the part-time jobs fall within the same category of work as the one your visa allows, there is hope. But if not, you should be careful ever mentioning that.

The one that starts in August – if the work you will be doing for them is within the same category as the one you had – maybe that works. You need to engage that employer to help you with being the next sponsor for your work visa/resident status. Have a letter of employment or something written by them ready, so that you can show somehow that you gchanged employersh with a short time in between. How much time is there between the time you left your first employer and the one commencing in August? Best wishes with everything.