What happens when your best friend, who you happen to like, stays over for 10 days?

In this AU, a large majority of people have soulmate marks that are permanently tattooed into their skin with the final words of their soulmates. There is also a small chance that they don't have a mark, and never meet their soulmate or never speak to them. I got this idea from a tumblr post and decided to make a Kagehina fanfic with at least .1% Daisuga for my friend. This is still to be fully planned out and a WIP I have no idea what this plot is going to turn into

Sugawaras life is a mess. School and volleyball are the most important things right now. But soon he discovers that he got feelings towards Daichi. What will Suga do?