Eeeeeeeeeeee, I love this! I do not know the canon, but this is making me want to go seek it out. Haruka's pleased smile, Kiryu's determination to figure how out to help. "he decides to treat her like the calm and mature rock she has always been for him" & "She doesn't need to ask him for permission to take up time and space in their empty apartment" really hit for me.

Thank you for sharing. <3