Senioritis!

Manga/Anime I like a lot: Tokyo Ghoul, Mahou Shoujo of the End, Mahou Shoujo SITE, Magi, Berserk, Terror in Resonance, Naruto, Bleach, One Piece, D.Gray-Man, Blue Exorcist, To Aru Majutsu no Index, Hellsing, Shokugeki no Soma, Ubel Blatt, Umineko Series, the Breaker, the Breaker: New Waves, Fairy Tail, Hunter x Hunter, Detective Conan, Onepunch-Man, Tower of God, Gantz, Soul Eater, Nanatsu no Taizai, Claymore, FMA, Medaka Box, Deadman Wonderland, Pandora Hearts, Btooom, Psyren, Eyeshield 21, Liar Game, World Trigger, Aphorism, Silver Spoon, Yu Yu Hakusho, Zatch Bell, Arachnid, Evangelion, D.I.C.E. ...

The list goes on and on.

In-Progress Fanfiction:

Mr. Moth Chapter 12

Transient Spirit Chapter 1

From the Neck Down Chapter 1

Future Fanfiction: (bad, half-hearted summaries)

Magi SI -

Hollow Shell - Koukara Ren (Male)

The younger brother of Hakuryuu Ren, born without Rukh - something normally impossible in the world.

Naruto SI's

Noppera-Bō - Arisu Dokodemo (Undetermined gender. No sex.)

You come from a family born with no faces. Go find a face of your own, and infiltrate other villages while you're at it.

Magic Mirror - Mikaze Mito (Male)

Namikaze Minato, the savior of Konoha and the Fourth Hokage. Died while sealing the Kyuubi at the expense of his soul. And a recently dead human comes along... An empty (well, dead) body, ready for the taking? Perfect.

From the Neck Down - Sasaki (Male)

The twin of Sasori. Cool, right? Also a cripple. Not as cool.

Transient Spirit - Keto (Female, technically no sex)

A girl from Earth is thrown into another world, but she leaves her body behind. Now, she only exists as a sentient amalgamate of spiritual chakra.

The Giving Tree - Nodo (Male, but not really)

When a soul enters another world, it must find a vessel to possess. Luckily, there seems to be many empty vessels, trapped in the Statue of the Outer Path.

Katekyo Hitman Reborn SI

Vindictive - Sawada Ietsuna

The Flame of the Night is born out of bitterness and hatred, and unique to those who have overcome the boundaries of death.

Harry Potter SI('s?)

March Hare - Patchouli "Patchy" Pettigrew (Male)

The son of Peter Pettigrew. Still hates Peter Pettigrew. Older than the Golden Trio.

Toil and Foil - Charlus Lily Potter/Charlie Potter (Male)

Younger sibling of Harry Potter. Hates muggles. A brat of grand proportions.

To be honest, I'm not sure they quite count as SI's. Semi-SI's then. Also, it's "sex" as in reproductive anatomy.