Imasugu Watashi to Kekkon Shitekudasai: Konkatsu Kigen wa 3 Kagetsu

Kotoha hasn't had a boyfriend in ten years, but now she'll get married in three months! Right before a company party, Kotoha Aihara (29) got news that her grandmother has only six months left to live. On her sickbed, Kotoha's grandmother says her only regret is not being able to see Kotoha get married... So, Kotoha decides to get married within the next three months!! Desperate and willing to marry anyone, three of her coworkers nominate themselves for the job!! After the company party, they decide to test their physical compatibility, but it's been a while for Kotoha (plus, there are three of them!), so things heat up pretty fast... Is this for real!?
(Source: Renta!)