Martin's Morning (Anime Crossover

My name is Martin. Every morning, I open the door to a new world and watch all kinds of bizarre, eccentric anime characters having a great time. Today I'm next door to Naruto, tomorrow I'll drop into the professor's room, and I'll even bring a girl version of Izaya into the black notebook.

All I can say is: it's like chewing Xuan Mai gum. I just can't stop.

[The timelines converge with "Gentlemen" later on]

&&&

[DN] When Orihara Izaya, L, and Yagami Light all gather together... Great, I'll choose death.

[Durarara!!] Not only do I live next door to the most evil guy in Shinjuku, I also get raided at night. Just wonderful.

[Black Butler] The Phantomhive family's haunted-house legend?

[Gintama] This is downright insane! Everyone gets gender-swapped!

[Detective Conan] You, the eternally elementary-school-aged little death god, when are you going to marry Kaito Kid?

[Naruto] Naruto, are you going to raid Sasuke's place tonight? Count me in, lol.

[Seraph of the End] Mika, let him go and let me have him!

[Pet Shop of Horrors] Count, how about selling me a pet that doesn't eat people?

[Black Butler] Sebas-chan, listen to me explain! I absolutely did not mean to show up beside the young master's bedroom.

[Hunter x Hunter] The Phantom Troupe, Meteor City... Stay in, stay in, stay in! I'm definitely not going out!

[Harry Potter] Professor Snape... Never mind, I'll just stay home all day.