No he doesn't. Haesoo and Joowon do. So that side story better be about their new lives together as a new official couple being madly in love with eo and happy because anyone knows they damn well deserve it. If there will ever be a side story I want it to be about them and them exclusively.
I think it would be better if taku will have his own story... because I really think the extra chapters will only focus with joowon and haesoo (if ever yeongha will decide to make chapters since she didn't put extra chapter in her previous work "fools"
I really hooe the author would give him a very very special side story with a 30+ chapters because he deserves it.