Unfather
Mess up manga. Protagonist made decisions that made his life hell and broke in the end. The decisions were bad but all of it was for the sake of his and his mother's peaceful life.
momichupa oppabu osu time
Ch 1 - 3: Yamashita introduced shimada to a sex bar when he lose his job. Shimada is yes-man who can't say no to anyone. When he entered the job and the boss explained things, he wasn't able to say no. The job is to let ppl lick on your nipples but no letting them make love. Shimada lucky was not called in for that in a week till after a week, someone called him in the V.I.P. room. The V.I.P. room is a private room where the ppl can even make love on you. Ch 4 - 6: Shimada's coworker and roommate(?)'s story on his early days at the bar. I didn't actually read this story because i didn't like it and mostly because its a story of a character in the 1st story.
Youchina Koi O Dou Shiyou