Honestly this also makes sense for not imposing a "true timeline" for the story and the fact Echo forces the doors shut on Euca's "first" day, I would like to counter this and say that some text implies that Euca is just avoiding being alone with his thought and would be more active than that.
But overall we gotta wait and seen considering Shirokoi is like what? 1/5 of the way done? more or less depending on what he's cooking hopefully if we get another big update it adds more fuel to this fire.