Touhou Wiki said: What is known is that Youki, also a servant of Hakugyokurou, had begun training a very young Youmu when he suddenly disappeared one day, leaving her style incomple. No one currently knows his whereabouts.
*sigh* Perfect chubby Yuyuko, and it gets completely sidetracked by what's going on in the picture. Oh, well.
*scrub scrub scrub*Hey, Youmu, you're scrubbin' too hard! Be a little gentler on your old Grampa's-You're welcome, Ojii-chan.Well, anyhow, Youmu, are you disciplining yourself properly?
If you let yourself pile on the excess fat, you'll end up like Yuyuko-sama.I swear, it seems like all that woman does is eat and sleep...Thanks for always doin' this for me, Youmu.I'm Yuyuko, but...*SCRUB SCRUB*