If you're looking for manga similar to Close the Last Door!, you might like these titles.
Karou, the male twin to the female super-model, Tsubaki, hates his face for its feminine beauty. Disgusted by the men drawn to him by his similarity to his sister, he has grown to hate any kind of contact with men. Then why is he conflicted by the attentions of Shino, the president company giving financial backing to Tsubaki's cosmetic firm? Isn't Shino just like all the other men seeking a substitute for Tsubaki?
Izuhara Sou, the leader of the crime prevention group “VOICE” that protects east Karasugaoka realizes he’s in love with the man he keeps butting heads with and leader of the rival group “Karasukai”, Shinba Tetsuji…!?
After suffering a loss both at work and in his personal life, college student Sora feels crushed. A stiff night walk to process his thoughts leads him to a discovery: a handsome man sitting in a secluded spot in the park that’s perfect for stargazing. Sora and the man start chatting, and he feels comfortable enough to start talking about his problems–but he’s still stunned when the man kisses him! Although Sora initially writes off the night as an unexpected connection with a stranger, this isn’t the last he’ll see of the man who stares up at the sky.
Time passes and life goes on as always for Tsubaki, Hirawa and the little Fumio, who is now in elementary school.
Shimizu, the sales manager of a company, turns into a completely different person after five. He strips off his suit and becomes ‘Jonathan’, seducing men at the club he frequents. Then a familiar face shows up. Okino is a straight-laced, by-the-book guy from the company’s legal department and Jonathan decides to have a little fun messing with him… But what if Okino manages to get a peek under the mask?
"Pamper me! Right! Now!" On his way home from work, Tatemaru comes across his high school senpai, Miyama Yukihito. He's supposed to be this super perfect and talented person, but he's here in his house, lazing around, acting selfish. Seeing Miyama reveal a weaker side of himself to him, Tatemaru can't bring himself to kick Miyama out. Thus begins their domestic life together.