Light summary:
Claude successfully kidnaps Ciel and brings him back to the Trancy mansion while the party hosted by Lady Elizabeth is going on. He didn't even forget to leave a note to let Sebastian know.
Upon receiving the news, an angry Sebastian went to the Trancy mansion to challenge Claude to win the master.
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Ciel's P.O.V

I woke up dimly, narrowed my eyes and blocked the bright sunlight with my hand. I feel so weird, this place... isn't my bedroom? The bed, too, was not comfortable at all.
I looked up at the ceiling, making sure this wasn't my mansion. So if this isn't my mansion, what the hell is this place?!
Suddenly I heard a deep voice, and it was so successful it startled me. Turning to the source of that voice, I saw a picture of a tall man, dressed from head to toe as a butler's clothes.
I raised my voice and asked:
_ Sebastian! Where is this place?!
The figure slowly emerged from the darkness and I suddenly realized it wasn't Sebastian. That person has amber eyes.
Excuse me, Earl Phantomhive! But I'm not Sebastian, my name is Claude Faustus!
_ Where am I?! And why did you kidnap me here?! -I asked coldly-
Claude also just chuckled and replied softly:
_ OH! Nothing at all, Earl of Phantomhive! There will be a battle between me and your butler, and the victor will get your soul!
Saying that, Claude came over and changed my clothes! His hands are quick and skilled, just like Sebastian's. As soon as my nightgown was removed, I shivered slightly from the sudden cold.
Claude quickly put on my suit, even though he kept staring at my skin as he took off my nightgown.
Seeing him keep staring at me, I felt very uncomfortable with his rude eyes mixed with something very lustful.
After putting on my suit, Claude brought me socks. The way he did it was exactly the same way as Sebastian did for me, except that the one who was dressing me up was not Sebastian but Claude! When he finished, he was about to bend down to kiss my feet!
I couldn't stand it, so I shoved him with my foot, sending him flying away. He adjusted his glasses, looked at me and smiled evilly. That smile was disgusting, making me feel very uncomfortable and wanted to vomit. This name is truly insane!
Now I just hope this match will come and end soon so I have to go back to the Phantomhive mansion!
I sat up and walked out, followed by Claude. Why does he keep following me around? I went downstairs, it was pretty nice and I have to agree on that too.
When I got there, I saw a maid, the same one who fought with Sebastian last time. What is she doing here?
When she saw me, she quickly bowed her head. Looks like he's afraid of something. I raised my voice and asked:
_ What is her name and who is she?
That maid quickly replied:
_ Sir! I'm Hannah, Hannah Annafellows and I'm the maid of Trancy Mansion!
I just nodded, continuing down. When I arrived, I saw that Claude had prepared food that I hadn't noticed until now. I sat down and started eating. Suddenly a very loud noise was heard, which startled me, and Claude just smirked.
_ OH! Looks like your butler picked the wrong time, Earl Phantomhive! I remember challenging him, but choosing the timing! (Sebastian was so worried about Ciel that he forgot to read the postscript Claude wrote on the back of the Note.)
Having said that, Claude left. I watched in surprise and gave a small smile. Finally, that Sebastian has come!
I put my cutlery on the table and ran out at full speed. When I went out, I saw that the sky was dark, and there were some blood red clouds.
I went looking for Sebastian and I caught him in the sky, Sebastian trying to snatch a sword from Claude?! What does that sword have that the two of them fight for it?
Then I saw Sebastian looking down at where I was standing and his eyes wide, Sebastian shouted:
_ Bocchan! Careful!
Before I could react, I felt a pain in the back of my neck, as if someone had hit me. I saw everything in front of my eyes fade quickly and there was only black.
My whole body fell into Sebastian's familiar warm embrace. He still cares about me!

Sebastian's P.O.V

I went to see Claude according to what he recorded in the Note, but for some reason I went from 12pm last night, but I didn't show up at the Trancy mansion until 6am this morning. I met Claude, he was feeding my master breakfast, I was so angry that I was speechless.
Suddenly Claude appeared right in front of us and we started a little "negotiation". Claude told me that the master was his, I was so angry that I couldn't take it anymore and we both got into a fight.
In the midst of tension, I suddenly saw the master standing below. Suddenly I saw a mysterious person behind him. I shouted out loud:
_ Bocchan! Careful!
But the other man hit the master on the back of the head and knocked him unconscious. I let go of the sword that I was fighting with Claude and rushed down to help him.
His entire unconscious body fell into my arms, cradling him with all his might and stroking him. I then put him on the grass and continued the game.

Claude's P.O.V

I'm about to change into Ciel Phantomhive's suit, which I will call my new master. I took off his nightgown... and appeared before my eyes was porcelain white and extremely smooth skin. I admire Sebastian, how can he keep his master so clean and smooth?
I stared at the Earl of Phantomhive's body for a while and then began to change his clothes, I purposely made it so that when changing my fingers I could feel the most on the other skin.
Then I put stockings on the Earl, bent down to kiss his little feet. Perhaps Earl Phantomhive felt uncomfortable so he threw me away, sat up and adjusted my glasses I looked at the Earl and smiled evilly.
Then I went downstairs with him to prepare food for the new owner. While serving I suddenly heard a very loud noise. So here comes that Sebastian.
I went out to meet him and we both had a little "negotiation". Then we had a two-way conflict.
In the midst of stress, Ciel Phantomhive appeared and was knocked unconscious by a mysterious person I asked. On Sebastian's side, he dropped the demon sword we were fighting for and rushed down to help the master.
Sebastian hugged Earl Phantomhive in his arms, then put him on the grass and flew up, and the two of us started the fight again.
This time I am more profitable because in my hand I hold a sword that can kill any demon or angel. So me and him wrestled each other in the overcast sky. Sebastian was open-minded, I took the opportunity to stab him in the heart with my sword, killing the last obstacle. (Whoa, don't blame me, in this scenario, it's the Claude x Ciel couple, so I have to make Sebastian die)
Sebastian's body slowly disintegrated and disappeared, landing on the ground and putting his sword back. It's pretty late now, 12 noon already. I walked over to the official new owner, carefully carrying him back into the mansion. I finally got this soul.
To be continued...
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I'm so sorry for update this late, hope you guys enjoy this