I thought of a komahina story.
It won't be in the oneshot book though
It will have it's own book
I'll summarize it
(This involves a bit of angst, most of it will be at the beginning)
It had been 2 years since Komaeda passed away, and since then Hajime would visit his grave once every 1 to 2 weeks to tell him how life's been going. Lately Hajime has begun to notice strange things starting with waking up to hear someone cooking. When he went to check to see if someone was there, all he saw was a plate with burnt pancakes and syrup. This continued to happen more often and later on he began to get weird notes saying things like "I love you Hinata kun" or "I wish you were able to see me" or "Make sure you bring bagels next time you see me". Hajime to think that he had a stalker and installed security cameras in house *mainly in the kitchen and out in his backyard*. Somehow the events kept occurring yet no one seemed to be there.
(You guys probably know Hajime's "stalker" is)