Chapter Text
Pairing: Uchiha Madara/Senju Tobirama
Senju Tobirama is the stronger sensor in all of Fire Country, possibly all of the Elemental Countries. He can sense nearly 180 kilometers away, able to read emotions, affinities, strength, familial relations from a person's chakra. However it comes with a price.
Tobirama is unable to shut off his sensor ability, and uses his happuri to help shield his mind from overloading on all of the information. When his last spare happuri is broken on a mission, Tobirama must wait for a new one to be forged, which takes several weeks of carefully placed seals, then a purification of foreign chakra. During this time, Tobirama gets massive migraines and goes catonic at times from the sensory overload. Hashirama is able to help by using his Mokuton healing ability to deaden Tobirama's sensor ability, however it leaves Tobirama extremely lethargic and unaware of anything around him.
Tobirama gets a bad migraine while working. Madara barges in, pissed about something, with Alive!Izuna in tow, chakra lashing out. Tobirama quickly gets overwhelmed, and promptly throws up. Madara panics, because this is Senju freaking Tobirama, He Who Is Never Weak, who Madara low-key has a crush on, and makes the headache worse. Izuna runs out to grab Hashirama, who quickly helps Tobirama, before explaining to Madara and Izuna what happened. Unfortunately, Hashirama has a Very Important Meeting, so Madara gets voluntold to babysit a very loopy, very out of it Tobirama.