Yes, 7-11 or something. They store deodorants for people like salarymen who stay at work days and nights without bathing. They even stock underwear.
General Japanese population baths every day, they don't use any scented camouflage.
My advice would be: bath, don't spray smelling things, your coworkers or whoever would notice that.
If you have to use an online shop, go to Rakuten, they have it all in English.
Funny, in 70-ies last century (good chance you haven't been born then) , when I ordered something from a catalogue, no computers and online existed, my order would arrive within 2 weeks.
With Amazon.com takes 3-4-5 weeks. What a coax that company is (+ they have not turned any profit as yet).
True, my coleague told me he got a product from amazon.com within days, but that was something stored locally.