𝕄𝕦𝕚𝕥𝕒𝕟 𝕆𝕟𝕖𝕤𝕙𝕠𝕥𝕤

He's a... child...?

Angst
Manga spoilers
Au: taisho era, child mui: hit w/a bda that turned him into a child, but only at important ages in his life. He won't remember anything that happens when he is turned into a child. The bda stops once it gets to the end of his life.

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Third person POV

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Muichiro was out on a mission fighting a lowermoon demon; lowermoon 2, to be specific.

The odd thing about this particular demon was that he never used his blood demon art and only fought with his claws and basic martial arts.

Muichiro thought that it was odd that the demon wasn't using his blood demon art. In muichiro's experience, lowermoon demons tended to use their blood demon arts for most of the fight.

Muichiro cut the demon's head off, but before he fully disintegrated, the demon said "blood demon art; age manipulation".

Muichiro wasn't exactly paying attention to what the demon had to say, but he knew that it had something to do with ages.

Ginko, muichiro's crow, came flying over to him.

Ginko: caw! Head back to your estate and get some rest!

Muichiro followed the crow's orders and headed back to his estate. He was excited to get back, since his boyfriend, tanjiro, would be there.

Most of the time, the hashira lived alone in their estates, but the master let tanjiro live with muichiro. The master thought that it would be better for muichiro to live with someone, especially since he was so young and forgetful.

Once muichiro made it back to his house, he greeted his boyfriend and the two of them went to bed.

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In the morning

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Tanjiro woke up before muichiro that day and decided to make the two of them breakfast, since muichiro couldn't cook to save a life.

Tanjiro started making breakfast, when he heard crying coming from his and muichiro's shared room.

Tanjiro turned off the stove and rushed to his room. When he got there, he was shocked, to say the least, at what he saw sitting in their bed.

Tanjiro saw a small version of muichiro. By a small version, he means a child version of muichiro.

Muichiro looked as if he was about five years old, and he was also crying.

Tanjiro went up to the mini muichiro and asked for his name.
Muichiro looked up at him with a bit of fear in his eyes before saying

5 y/o muichiro: I-I'm Muichiro T-tokito.

Tanjiro smiled gently before saying

Tanjiro: hello muichiro, my name is tanjiro kamado. Don't worry I won't hurt you.

When mui heard tanjiro's gentle voice, he calmed down a bit and said