Koutarou is a struggling actor who just got kicked out of his friends apartment. Akira, a restaurant owner, picks him up and they move into together. In the second story you meet Koutarou's identical twin brother who finds his own lover. Third story is a one night stand with co workers.
(78 -119 ) Shougo likes the art that Ootsuka sensei paints. Shougo gets invited to intern at Ootsuka's art school just to find out he is an irritable person, nothing like he was when they first met. Turns out Ootsuka has a identical older twin brother.
(119-183) Older twins story
Nanami has several sex friends and gets what he wants in life with the help of his body and his face. Out of the blue his favorite sex friend requests a three some with his twin brother.
Subaru and Hayato are identical twins who is close to their neighbor, Kengo. However, Kengo is capable of telling the twins apart even if they pretend to be one another. Subaru is mad that Kengo treats him harsher than how he treats Hayato but Subaru does not know that Kengo likes him.
Gunjo Ao works in a kindergarten where he helps with the children. Aki is very fond of him and so is his father, kurose. Ao thinks that he is falling in love with Kuros but they are both straight so he tries to get the though out of his mind. However, things change when his gay identical twin brother (midori) has a date with Kurose and he makes Ao impersonate him and go on the date so that Ao can see what a nice man his brother likes. (Midori usually ends up choosing bad men so that is why Ao is
Minami woke up naked in a bed being cuddled by a man he did not know. Minami decided to ask his identical twin brother Kazushotu for advice. Kazushotu is a editor who is in love with his favorite novelist who he is also managing, Yukihara, but have never met with before. Kazushotu was asked to dress as Minami and figure out if the stranger is a bad man but his heart was broken instantly when he noticed that the stranger, his brother slept with, is Yukihara who he's been in love with.
This feutures the twins Souta and Kazunobu who was featured in (http://www.mangago.me/read-manga/sore_wa_boku_no_ai_ja_nai/) which focused on Kazunobu's love life.
Souta is a professional badminton player who likes to sleep around with various men and among his men is Higaki who was a sempai from collage who is now a trainer for the team. Higaki is truly in love with Souta who refuses to date him and will only sleep with him with no strings attached. Souta has a reason for playing around and
Aya and Mei are twins who liked the same guy but Mei was the one who confessed first. Aya got depressed and started changing the way he looked until Mei died in an accident which caused Aya to turn into Mei so that he can comfort the man he and Mei loved.
Haru feels inferior to his twin brother so he uses his brothers name and prostitutes himself in an attempt to defile him and his brother.
Hitotsu Yane no Shita no Kedamono