RenRen's manga / #replacement(3)

DEAD FRIEND OLDER SEME NEW LOVE «•[]•»Tetsuji Ayoagi, works as a teacher but because of his unsociable & stern nature he is referred as "Mambo-Sensei" by the students...After years he suddenly received a sudden invitation from his old friend Kota who isn't supposed to be around..It was also because of what Kota once said he decided to become a teacher .. Despite his suspicions he decides to visit that place but was greeted by a strange young man there. ..who said will reveal his identity if Ayogai makes loves to him while making him his mistress --------- edit - as we all can guess this suspicious guy might be in love with seme and i was right this guy's name is Shun he studied & graduated from the same high school seme teach where in the library he found that letter..He was already in love with seme so he approached him that way ..So for 10 years seme was still stuck on his past ..but Shun was the catalyst which made him to move forward ..& shun too found someone to lean on & warmth & love he always wanted

Unrequited love w the older straight brother only to fall for the younger puppy dog brother instead A marriage announcement from his first love! That night, after giving into his despair and getting drunk, Akira forced his first love’s younger brother to sleep with him. Through the years, Haruto started looking more and more like his older brother, so Akira tried to avoid him. He didn't want to develop any strange feelings towards Haruto, but it still ended up happening…! Akira is afraid that he traumatized Haruto, who genuinely tried to care for him. But then… ”Don’t act like that in front of anyone but me.” After just one night, he suddenly acts like a boyfriend!? An extremely cheerful Haruto starts chasing after him, and although surprised, Akira follows his lead. It wasn’t supposed to be serious at first. But Haruto becomes more and more important to Akira as he sees Haruto’s admirable devotion…

Hara is a half Japanese who is the member of the library committee & is popular in the school for being ikemen & then there is Hasegawa Miki , a delinquent who is also a fellow committee member ..One day Hara learned that Hasegawa blindly follows whatever Aoba senpai tells him to do so he decides to approach senpai to ask him to make sure Hasegawa doesn't skip his committee work ..soon after Hasegawa started being more attentive & started getting closer