How to use a Ticket Pia machine at 7/11?

Will need to use a Ticket Pia machine at a 7/11 to purchase tickets for this event: https://www.njpw1972.com/tornament/20900

How common are these machines in 7/11s? Are they easily identifiable? Can I bluff my way through the menus & transaction using pictures / google translating photos of the machine's screen?

Struggling to find any resources on this

Thanks

It is possible that the people at https://buysumotickets.com may be able to assist you in getting tickets for that event.

As per their FAQ :
https://buysumotickets.com/faq.html

Can you get tickets for other events in Japan besides sumo?
Yes, we can buy tickets for some other events in Japan, depending on how the tickets are sold. Please note that we are not experts in other events, so we cannot give the same level of advice as we do for sumo tickets. Ask us if you�fd like help buying non-sumo tickets. If you want tickets for another event, please be specific in your request. Tell us what you want to see, where and when.

Examples of requests we can help you with:
Can you help me to get baseball tickets in Tokyo from July 15th to 20th?
I want to go to the New Japan Pro Wrestling (NJPW) event on April 25th.

Examples of requests we cannot help you with:
What other events are on during my time in Japan?
I want to see an event from November 1st to 10th. I�fm interested in concerts, sports and theatre.

Now confirmed the ticket sales status of the convenience stores from the Japanese site of NJPW,
but unfortunately only the game of that day was already all "sold out (—\’è–‡�” �I—¹)".
http://www.njpw.co.jp/tornament/132286
If you click "�Ú�×(details)" at below ticket sales company sites, you can see the "x" signs.
https://www.shikaku-square.com/magazine/wp-content/uploads/2015/01/ima...

LAWSON ticket :
http://l-tike.com/njpw
Ticket Pia :
http://w.pia.jp/t/njpw/
e+ (eplus) :
http://eplus.jp/njpw/

—\’è–‡�” : number of prepared tickets
�I—¹ : done/overed/finished = sold out
”­”„’† : now on sale

If you couldn't get it at other sales counters "‚Ò‚ (pia as "play guide")",
http://ticket-search.pia.jp/pia/spst/spst_map01.do
"“¬�°SHOP�…“¹‹´“X(Toukon shop in Suidoubashi)",
http://shop.njpw.co.jp/iwgp/pages/shoplist.aspx
or "ŒãŠy‰€ƒz�[ƒ‹‚TŠKŽ––±�Š(office of Kouraku-en hall, 5F)".
The possibility of remaining in a real store is extremely low,
so you have to line up in the row of the on day tickets from mid-night or early morning, maybe.