When Obanai doesn't feel like taking care of Kaburamaru, he let's Sanemi take care of Kaburamaru. He purposely did this because he knows Sanemi HATES Kaburamaru but Kaburamaru likes Sanemi. Obanai also knows that Kaburamaru has a weird tendency to try and eat Sanemi's haori.

•Genmui
•Slight Rengiyuu

Before the Rendount happened

~~~~

Sanemi- So you want ME to take care of Kaburamaru?

Obanai- Yes!

Sanemi- But why me? Why not Kanroji?

Obanai- Kanroji is busy Shinazugawa

Sanemi- Giyuu?

Obanai- Why do you not want to take care other Kaburamaru?

Sanemi- I don't know! Maybe because he SUCKS!

Obanai- Over a snake Shinazugawa? Your childish as fuck

Sanemi- Alright! Fine then! I'll take care of Kaburamaru!

Obanai- Good

Obanai gives Sanemi Kaburamaru. Sanemi wasn't happy but Obanai was a exception to him, but hey. Sanemi is a a simp.

Sanemi- See you later than shithead

Obanai- Alright then Salami Shinizigawea

Sanemi- What the fvck did you just say?

Obanai runs away like a little girl

Sanemi- That sweet motherfvcker...

Kaburamaru hisses at Sanemi for calling Obanai a motherfvcker

Sanemi- Look! I don't want to take care of you okay?

Kaburamaru hisses at him in disappointment

Sanemi- So that's why we're going to give you to Giyuu

Kaburamaru hisses in even more disappointed and tries to eat Sanemi's haori

Sanemi- Stop it you b!tch

Sanemi- Let's just go to Giyuu

Sanemi walks to Giyuu's estate to give him Kaburamaru

Although Kaburamaru was paranoid so he kept trying to eat Sanemi's nose

. . .

Eventually they make it Giyuu's estate

Sanemi knocks on his door

Rengoku- Hello Sanemi!

Sanemi- Rengoku?!

Rengoku- Yes Hi! I am Rengoku!

Sanemi- Why the fvck are you at Giyuu's estate?!

Rengoku- He invited me over for a sleepover!

Sanemi- SERIOUSLY?!

Kaburamaru hisses in utter confusion

Rengoku- Why do you have Obanai's snake?

Sanemi- Well-

Rengoku- Is it because you can't touch his snake?

Kaburamaru stares in utter disappointment

Sanemi's eyes are wide open, jaws drropped. Then Giyuu comes looking comfy. He looks at Sanemi, who is in shock.

Giyuu- Shinazugawa? Why are you here?

Sanemi- Can you just PLEASE take care of Kaburamaru for me?

Rengoku- Why best buddy?

Sanemi- You are NOT my friend!

Giyuu- But why? Me and Kyojuro we're going to play Uno?

Sanemi- SERI- can I join?

Rengoku- I don't see why you can't! C'mon best buddy!

Sanemi casually enters Giyuu's estate to play Uno.

. . .

Obanai- Where the fvck is Shinazugawa?

Genya- Hey Snake guy my brother talks about 24/7

Obanai- What Genya?

Genya- Where's you snake?

Obanai- Sanemi has it

Muichiro- Hey Genya and Serpent thing

Obanai- My name is Iguro Obanai, Serpent hashira, your best friend and the person you rant to, Tokito.

Muichiro- Oh yeahhh

Genya- Why does he rant to you?

Obanai- Honestly, he only wants me to teach him how to climb trees so he can sleep on them

Genya- Ohhh

Obanai- Also, how does Tokito remember your name?

Muichiro- Because we're dating!

Obanai- I'm sorry, WHAT?!

Genya's face goes really red

Genya- Wh-what?! No we're not!?

Muichiro- But grandpa said it's clear I like you and you like me

Obanai- Who's your supposed Grandpa Tokito?

Muichiro- Kokushibo

Obanai- Who is Kokushibo?

Muichiro- Uppermoon 1?

Genya and Obanai- WHAT

. . .

Sanemi- HOW DID YOU WIN 2763 TIMES IN A ROW KYOJURO?!

Rengoku- Cause playing with Uzui, trained me well!

Giyuu- Wanna play another round Kaburamaru?

Kaburamaru hisses while having a deck of cards, wrapped around his tail

Rengoku- Trust me Sanemi!

Rengoku- You will win eventually! Don't forget Tomioka won once too!

Sanemi scoffs

Sanemi- Alright FINE

. . .

Genya- How are you so sure, Sanemi and Kaburamaru is in the water hashira's estate?

Obanai- I have my snake senses alright?

Muichiro- Let's break in Onii-chan

Obanai- Your brother is dead?

Muichiro- Can't stop me from making you my brother?

Obanai- Fine I'll be your brother

Muichiro- ✧⁺⸜(●˙▾˙●)⸝⁺✧ʸᵃʸ

Genya- How did you do that?

Muichiro- I forgot

Genya- Damn it

Obanai- Let's just go

. . .

Sanemi- I FVCKING WON!

Sanemi screams super loudly, only leading Obanai, Muichiro, and Genya to believe he is there.

~ means whisper

Muichiro~ He's honestly stupid

Obanai~ For real..

Genya~ Can I shoot him Onii-chan?

Obanai~ Why are you guys calling me your brother?

Muichiro~ Cause his brother sucks and mines is dead

Obanai~ Fine but don't tell Sanemi or he'll beat the sh!t out of me

Genya~ He's going to eventually find out I'm dating Muichiro and will kill him

Obanai~ Where the fvck did Tokito go?

Muichiro~ Gays I'm back with Kaburamaru!

Genya & Obanai~ HOW?!

Muichiro~ I used Mist breathing to distract them and stole Kaburamaru show as sleeping!

Obanai~ Let's leave then

Genya and Muichiro~ Alright

The weirdos leave

Sanemi- Where is Kaburamaru?!

Rengoku- I ate him!

Sanemi- What the fvck Kyojuro!

Giyuu- Let's search around

After searching around for 1202891928 years, they couldn't find him. Eventually Sanemi left and went to tell Obanai bad news.

He finds him watching Muichiro falling down a tree 5 times and Genya catching Mui every fall.

Sanemi- Oi Iguro

Obanai- What airhead?

Sanemi- I lost your snake

Obanai- Don't worry I found him

Sanemi- How did you do that

Obanai- I forgot

Sanemi- Damn it

Muichiro falls again

Muichiro- Hey Genya?

Genya- What Mui?

Muichiro- If we both see Obi as brothers, are we siblings

Genya- No since we're not blood related

Muichiro- Ok

~~~~
They only reason I head canoned Mui and Genya to see Obanai as a brother figure is because people make Mui and Giyuu as "brothers" and also it would be funny to make Sanemi arguing with Obanai about adopting Genya, his brother actual brother

Also Genya, Mui, and Obi will be a trio but won't be mentioned a lot

Same with Sanemi, Giyuu, and Rengoku they will be a trio but won't be mentioned a lot

Oh and after Kaburamaru woke up, he won a Uno World Championships, got keys to the infinity castle as a reward, killed MJ, and is now the new Demon King👑