You worked for the pharmaceuticals agency as new doctor assigned taking care of Wakatsuki. You two had created a special bond, even if arguments didn't miss

Wakatsuki was out in the garden, training himself and learning how control his might but… when he spots you, he looked away, the past weeks he was acting strangely weird

You went closer him wanting to know why this weird behavior and after you asked he answer

I might… have fallen in love… says quietly