You and Shoto are roommates.

You were in your room, simply doing your homework and drinking tea, when Shoto randomly burst in. You didn't notice and kept doing your homework, Shoto leaned on the doorframe and watched you until you noticed.

You kept writing your homework and drinking your tea, until, you turned around and saw Shoto, standing there and staring. “Took long enough.” Shoto said, calmly.