I Won't Let Go Until You Say "I Love You!": Innocent and Complicated Sex with a Rival Coworker

Story :  "Are you feeling it? You're twitching." If his thick manly fingers stir me up down there while his breath hits my ear... I can't hold my voice back...! Riku and Miyu work at the same design company, but the second they come face to face, they start annoying each other and fight like cats and dogs!! But, the truth is, they actually like each other! They're both "unrequited lovers," who just can't be honest with one another!! Even when they try to get closer, they just end up fighting again... However, one day, after Miyu got drunk and almost blurted out her confession, the situation suddenly changed! "You actually what!? If you don't say it... I'll kiss you, you know!?" Unable to take it anymore, Riku throws her onto the bed! What will happen to their clumsy, argumentative, pure and adorable love...!?