(however Deniss' avocado tarta could have been a reason

).
That might explain why other girls weren't with them (to avoid getting 'tortured' by such a temptation)
(Satoko is known to eat loads without worrying about gaining weight.)
In fact I have similar woolen jacket and it's great for the mild winter (to some minus 5 degrees) - and the temperature in Oberstdorf and Champery was about plus 2 C at that time.
So, that's the mild winter there...

hwell:
I've never heart about any international competitions in Davos (I mean recently, there were even World championships organized years ago)... so maybe Stephane was talking about an ice show?
What I found is the Ice Legends, the first Stephane's own show, in Geneve, Dec. 2014. There were three kids involved: Noah Bodenstein - Stephane's student (10 y.o. at the time), Marin Honda and Koshiro.
Here are photos from rehearsal, Koshiro is in the 26-28th. He was so little then, even smaller than Noah

And other ones,
from the show - see no 3 :luv17:, 24 and 25
I don't know whether Koshiro and Stephane met before, but as far as I remember they saw each other in Lillehammer at Youth Olympic Games in February 2016 and after these competitions the question of coaching arose. But of course I may be wrong.
I don't have the source at the moment, but I remembered in one of Stephane's older interviews he said he first met Koshiro at a camp when he was quite young and he really liked the way he skated. I assume it's one of those summer camps he teaches for JSF. That's how Koshiro got invited to Ice Legends in 2014
Thank you both! I think you both are right. Multiple translations and summarizing attempt for articles could mess things up, or their oversight or w/e.
As far as I know, what Reut-san wrote a while ago is the most accurate with regard to his relocation in Stephane's view, but I wanted to make sure. Because, I can't keep track of everything in the past especially in his novice days, let alone ice shows, but he's been somewhat known in the skaters' community and you could spot Koshiro being mentioned (or appearing) here and there, or where you never expected. (Like, you don't expect to see Koshiro's name when you're reading
someone's tweet about a 5 yr-old interview article of Javier and Thomas Verner...)
So, to summarize up:
Jul 2013, Koshiro joined his third
Nobeyama camp (for novice prospects) and met Stephane (as an instructor) for the first time. (2012 camp had Jeffrey Buttle and 2014 Vitali Novikov)
Dec 2014, Koshiro in Ice Legends. (and more ice shows in 2013-2016)
Feb 2016, Koshiro took part in Lillehammer Youth Olympic (where he/JSF asked Stephane for choreo, also talked about coaching?)
Dec 2016, a little fuss over Koshiro's relocation on social media
Mar-Apr 2017, Nagasawa moved to Shiga prefecture.
Apr 2017, Kinoshita Group officially announced Koshiro's support (Koshiro went to Toronto for treatment)
May 2017, Koshiro moved to Champery, started living alone (According to Koshiro's interview, it was meant to be a casual trial at first)