119Ghost of a Chance » by Snow-hime Not many people knew that Tsuna had a twin sister, and for a good reason. Shizuka Sawada had died the moment they were both born. Now known as Crazy Tsuna, the ghost of his sister helps the unlucky teen navigate his crazy life. "Shizuka, stop pranking Hibari! He might call an exorcist!"
Katekyo Hitman Reborn!, T, English, Humor & Family, chapters: 30, words: 47k+, favs: 541, follows: 585, updated: 9/17 published: 4/16/2018, Tsuna/Tsunayoshi S., OC
1k+Russian Roulette: Second Chamber » by Vixen Tail Part 2 of 2. No one ever said an SI gets a place in canon events, or that they would be ideally placed at all. How much would you recall if you had decades to go before anything in a long forgotten story comes to be? AU, Thief!SI/OC, Pre!Fated Day Arcobaleno, very Pre!Canon
Katekyo Hitman Reborn!, M, English, Crime & Family, chapters: 76, words: 849k+, favs: 1k+, follows: 1k+, updated: 9/3 published: 4/1/2018, Skull, Adult Reborn, Arcobaleno, OC
4k+Sanitize » by Sage Thrasher Basic medicine and sanitation are simple. During the Warring Clans era, they become revolutionary. [OC-Insert]
Naruto, T, English, Drama, chapters: 13, words: 89k+, favs: 12k+, follows: 13k+, updated: 8/24 published: 4/2/2017, Madara U., Hashirama S., OC
194Flame » by RedCommander72 What if Kurapika wasn't alone when taking the hunter exam? what if he had a travelling partner that hit it off really well with Gon and Killua. Will she stay with Kurapika and help him achieve his goal or will the two part ways? And what would happen if Killua grew a soft spot for her? KilluaxOc
Hunter X Hunter, M, English, Romance & Adventure, chapters: 46, words: 170k+, favs: 397, follows: 460, updated: 8/2 published: 3/21/2016, Killua Z., Kurapika K., OC
1k+The Baker's Daughter » by LeftNotRight Even when one perfects the art of baking, the results can be surprising. A single moment can render everything inedible. In this analogy, I am the one who fudged up. I am bad at analogies. SI/OC (This story is M for a reason!)
Katekyo Hitman Reborn!, M, English, Adventure & Romance, chapters: 59, words: 613k+, favs: 1k+, follows: 1k+, updated: 7/24 published: 7/16/2016, [T. Yamamoto, OC] Ryōhei S., Vongola 10th Generation
258Here and There » by Darkpetal16 The Shinigami King grew tired of his play, so he asked an old soul to change it. Otherwise known as what happens when an eccentric, morally questionable, teeny tiny overpowered old soul is gifted an Evil sword and thrown in a couple thousand years before Ichigo is born.
Bleach, T, English, Parody & Humor, chapters: 15, words: 55k+, favs: 876, follows: 1k+, updated: 7/16 published: 7/13/2020, Orihime I., S. Aizen, T. Hitsugaya, OC
1k+Erased Potential » by theslytherinpaladin Midoriya Izuku, determined to become a hero before ever meeting All Might, looks for another way. He might not have a quirk, but that can't be all that being a hero is about. He has the intelligence, the drive, the determination. All he needs now is to know how to use it. Enter Aizawa Shouta.
My Hero Academia/僕のヒーローアカデミア, T, English, Adventure & Romance, chapters: 55, words: 186k+, favs: 4k+, follows: 5k+, updated: 6/2 published: 6/8/2017, [Izuku M., Shouto T.] Shouta A./Eraserhead
824Human Shaped Constellation » by jngsjngs Humans are not created equal. It isn't something we're taught so much as it is something we eventually realize: there are those who are born great, and there are those who are born. Empirically speaking, though, aren't we all made of the same star stuff?
My Hero Academia/僕のヒーローアカデミア, T, English, Romance & Friendship, chapters: 26, words: 205k+, favs: 1k+, follows: 2k+, updated: 4/22 published: 8/26/2017, [OC, Shouto T.] Izuku M., Katsuki B.
134Multicolor World (BEING REWRITTEN, currently on Chapter 1) » by shaiosa Alex finds herself in the HxH world starting at the very beginning, how can she run the race with these people knowing she's only a normal person from the real world. It's like a role play game now, only, if she makes a mistake. She dies. All she has as a weapon is her knowledge of when and how things would happen according to the episodes she watched as a kid. Rated T - M in case.
Hunter X Hunter, T, English, Adventure & Drama, chapters: 14, words: 54k+, favs: 139, follows: 172, updated: 3/17 published: 3/31/2013, Hisoka
2k+Rotted Rowan » by Darkpetal16 Not everyone can be a hero. Sometimes you have to play the villain in order to save everyone. Realistic Antagonist OC. OC SI Self-Insert Antagonistic!OC
Naruto, M, English, Adventure & Horror, chapters: 40, words: 258k+, favs: 6k+, follows: 6k+, updated: 3/6 published: 10/27/2013, Kakashi H., Obito U., Madara U., OC
24 Red and Blue (discontinued) » by Prinxessvin264 (in the process of being rewritten) Welcome to the world of the Akashi twins. -AkaKuro Twins AU. lots of OOC-ness, Teiko arc; Incest warning, but there's more brotherly love.
Kuroko no Basuke/黒子のバスケ, T, English, Drama & Romance, chapters: 13, words: 36k+, favs: 119, follows: 149, updated: 1/24 published: 3/28/2017, [Kuroko T., Akashi Seijuurou] Generation of Miracle
39Loyalties Lie » by sxglow "Nature does not hurry, yet everything is accomplished." Unfortunately, I am not nature and I am in a big hurry. The plan is careful, every step calculated, and ruthlessly executed. Or, it could blow up in my face. Only time will tell. First stop: A Hunter licence! KurapikaxOC
Hunter X Hunter, K+, English, Adventure & Romance, chapters: 18, words: 54k+, favs: 65, follows: 100, updated: 1/5 published: 4/5/2015, [Kurapika K., OC] Gon F., Killua Z.
1k+Hail Friendship! » by Darkpetal16 The cycle of rebirth is a heavy burden for one soul to bear, but perhaps one does not need to carry it alone. Self-Insert OC SI/OC
My Hero Academia/僕のヒーローアカデミア, T, English, Humor & Friendship, chapters: 27, words: 184k+, favs: 3k+, follows: 3k+, updated: 11/21/2020 published: 9/25/2017, Izuku M., Katsuki B., Shouto T., OC
174Stand Alone » by Na-Na-Nikki I need money, I need strength and I need to help my family. Passing the Hunter Exam seems like the only option now. It was just my luck that I made friends along the way; friends who understood my pain. I just hope that my luck will last, but something tells me it won't. KILLUA/OC HIGH T RATING - - MAYBE M LATER (Cover Image drawn by me) - Discontinued. Rewrite planned.
Hunter X Hunter, T, English, Romance & Angst, chapters: 25, words: 163k+, favs: 263, follows: 298, updated: 10/8/2020 published: 2/13/2015, [Killua Z., OC] Gon F.
1k+Of Heroes, Blood, and Boba » by Marshmellowtime There was a red thread that connected each and every one of them. It could bend, twist, and tangle, but it would never break. Though considering who her classmates were, she was getting pretty close to cutting it herself. "If you get your ass kicked one more time, I'm not healing you." Oc/?
My Hero Academia/僕のヒーローアカデミア, T, English, Romance & Humor, chapters: 32, words: 601k+, favs: 2k+, follows: 2k+, updated: 9/22/2020 published: 3/19/2018, Izuku M., Katsuki B., Shouto T., OC
81Reincarnation » by Eris Vendetta Years after their deaths, Meruem and Komugi were reborn in the world. But would their love let them find each other? Or will fate and the harsh cold reality of the cruel world become a hindrance to their love once again and keep them apart?
Hunter X Hunter, M, English, Fantasy & Romance, chapters: 13, words: 31k+, favs: 81, follows: 107, updated: 9/10/2020 published: 11/29/2014, [King Meryem, Komugi]
527Love Me for Thirty Days » by Mozu The Mochi "Make love to me every night, treat me like how you used to treat me before, hold me like how you held me for the first time and carry me in the arms every morning. Love me for thirty days before I really let you go." That was Tetsuya's deal before they could break off their relationship. AkaKuro nonetheless. Warnings inside. R&R
Kuroko no Basuke/黒子のバスケ, M, English, Romance & Angst, chapters: 29, words: 70k+, favs: 369, follows: 485, updated: 8/29/2020 published: 7/12/2015, [Akashi Seijuurou, Kuroko T.] OC
498100 Years of Loving You » by Nymphiase A series of AUs where Akashi and Kuroko are bound by fate in which they are reincarnated to find each other through their strong love. As the lifetimes go by, both of them never wondered what might happen after their 100 lives together. *Some chapters are rated M
Kuroko no Basuke/黒子のバスケ, M, English, Romance & Angst, chapters: 66, words: 243k+, favs: 444, follows: 484, updated: 8/22/2020 published: 6/1/2014, Kuroko T., Kise R., Aomine D., Akashi Seijuurou
4k+ Chipped Mask » by Darkpetal16 "No one just falls into another world. It just doesn't happen." Full summary inside. Self-Insert, OC. -COMPLETE-
Naruto, T, English, Humor & Romance, chapters: 36, words: 163k+, favs: 5k+, follows: 3k+, updated: 8/17/2020 published: 4/3/2013, Obito U., Akatsuki, OC
2k+ The Yondaime's Assistant » by DianaMoth When I reincarnated in the world of Naruto, I was lucky enough to live in Konoha but not lucky enough to get all the superpowers you could hope for. I failed my jounin-sensei test and ended up in the Genin Corps. Bye bye jounin rank but, considering it also meant avoiding the battlefield, that's fine with me. Now I just had to get a position allowing me to change History...
Naruto, M, English, Romance & Friendship, chapters: 27, words: 178k+, favs: 6k+, follows: 5k+, updated: 8/4/2020 published: 11/15/2016, [OC, Genma S., Kakashi H.] Minato N.