Totsuide kita Yome Aisouwarai Bakari Shiteru

A samurai is worried about the fact that his wife always seems to wear a forced smile whenever she’s with him. He’s worried she’s unhappy in their match, but little does he know she’s just desperately trying to keep her wild passion for him in check for propriety’s sake.
(Source: Tokyopop)
Notes:
- Includes 26 extra chapters.
- Initially self-published on Twitter and later serialized on Nico Nico Seiga.