Aitsu Janakute, Ore ni Oborete? - Ano Yoru kara... Joushi no Netsu ga Kiete Kurenai

I won't let you go until you're mine. Ms. Adachi has reached her wits end dealing with her bully of a boss, Mr. Hiyama. Luckily, her co-worker Mr. Makihara that she's fantasized about for years is coming back from his overseas work transfer. When she passes out drunk after the office party celebrating his return, she's awakened by a kiss...but from who? Surely it was from the co-worker she adores so much, Mr. Makihara...or was it?