There seems to be a fan-meme where Natsuki and Shizuru have kids which are chibi versions of them (rather creepy if you ask me, but...). See post #77778, post #60588, etc. Judging by this picture, the Natsuki lookalike is called Shizunatsu, and little Shizuru would be... Natsushizu?
Bear down, Shizunatsu! 20 seconds to go!Exactly 100 seconds!uuuuh