1st story: Blonde is ineffective, and his roommate handles everything. His roomate is secretly in love with him, so when Blondie goes with his co-worker, his roomate gets jealous and ties him down.
2nd story: Guy 1 is mad innocent. Guy 2 is not, so he gets mischievous and does stuff with Guy 1. They meet years later, and Guy 1 is not as innocent as he was before, so they do stuff.
3rd story: crossdressing guy meets his old acquaintance, the acquaintance recognizes him, and the crossdressing guy does shit and gets money from the acquaintance. They then find out they have feelings for each other aside from money.
Yandere Hitotsu Yane no Shita