What if I told you that I loved you?

||Hi, I'm bored and I asked a friend if they want to do a collaborative story and it's their main au but we are adding Aus :) First chapter will be explanation and this is going to be on my acc though. Title is named after a song called "What if I told you that I loved you?" by Ali Gatie.|| Osomatsu has always loved his younger brother, yet he's also not sure why. He always liked girls and Karamatsu is the only boy he has ever liked. His sister(fanon oc) is the only one he has told. His only problem is that his other brother Todomatsu also likes his crush. One day Karamatsu asks (sings-) a question. One that will determine if this love was meant to be.