Friends & Friend of someone else

Shunpei and Fumi are best friends and neighbours. One day, Fumi tells Shunpei he might be gay and has agreed to go out with another guy in school. Shocked at this sudden confession (but very accepting), Shunpei questions Fumi about all sorts of things regarding his newly-discovered homosexuality - subtly aware that he's disappointed that Fumi picked someone else over him - and, upon meeting the boyfriend, cannot take that Fumi chose someone who was more or less normal... like Shunpei!

Sequal to "Elektel Delusion"
*Fumi is afraid that Shunpei thinks that their relationship is getting boring + that they are in a rut. So Fumis plan is to heat their relationship up!

Connected to Kuroneko Kareshi No Itoshikata. Yuujin (kagamis brother) and Takamizawa Ei (butler) know each other since childhood and live in england. One night yuujin and ei also slept with each other. Now yuujin has a son and also wants his brother to continue the bloodline. But his brother is togehter with shingo, so he has to fly to japan and break them appart. Ei tells yuujin that he has to fly to his parents place, because they think it is time for him to get married. What will happen?

Shintaru lives with his grandparents in a little town. One day, after an argue with his father, his best friend Satoshi is staying over and suggests moving to Tokio - and Shintaru should come with him. After talking to his grandparents they tell Shintaru that his mother is still alive in Tokio and support him on his travel.
*Prequel for the pairing Hashimoto & Oikawa

Sequel for the pairing Hashimoto & Oikawa_Ch. 5-7
*Hashimoto, who is only interested in cute little boys & a total top, falls in love with the total virgin Oikawa, who is neither cute and has, against Hashimotos preferences, long hair and looks total manly. For Oikawa, Hashimoto is his first love and hates it that Hashimoto always brings home young cute boys. After some time their feelings get mutual but then the next big problem comes - SEX ^^ - hyper arguing couple, love it <3

Tomo and Keita live separately as male friends, both with girlfriends, until a heatwave, one summer, leads to homosexual experimentation. Has this summer fling revealed their true selves, or was it just a side affair to their main relationships?

Nozomi has a childhood friend who is 7 years older than him, Mitsuru. Mitsuru not only teaches him how to study and play, but also teaches him how to kiss and masturbate! Nozomi wants to lose his virginity by having sex with a girl, but the only thing he can think of is doing it with Mitsuru. On top of that, he was harassed by an idol named Yuuma, while he himself uncontrollably harasses Jin who is younger than him. How will this continuously complicated love end?

Good friends since school days - now also in the same university. Uke finds out that seme slept with his exgirlfriend. she said taiga (seme) was better in bed than the uke. He was totally shocked (hole situation). uke talked with seme and said that he got to know that there are rumors that taiga can make someone come with just a kiss. seme asks uke if he really wants to find out - the make out (uke is drunk).

Childhood friends --> seme loves uke.