Salut, Hello, Hallo, Konn'ichi wa, Nǐ hǎo and Hola, to this wonderful (or not) book of anime oneshots!
Well then, without further ado... Here are my favorite characters (and the only characters I will write oneshots about)!

Kuroko no Basket; Akashi, Himuro, Takao, Mayuzumi, Kotarou, Daiki, Izuki, Kise, Midorima

Angel Beats; Otonashi, Hinata, Yuri, Shiina, Naoi

No Game No Life; Sora, Shiro, Steph, Jibril, Izuna, Fiel, Chlammy

Free!; Haru, Makoto, Gou, Ikuya, Momo, Seijuro, Ai, Asahi

Diabolik Lovers; Ayato, Laito, Subaru, Shuu, Kou, Yuuma

Tsukiuta. The Animation; Shun, You, Hajime, Arata

No.6; Nezumi

Owari no Seraph; Mika, Shinoa, Guren, Krul, Crowley, Shinya, Mito, Norito, Makoto, Shuusaku, Lest Karr, Akane, Ashuramaru, Lacus, René, Shigure

Strike The Blood; Kojou, Asagi, Vatler, Motoki, Natsuki, Amatsuka Kou, Astarte

Dance with Devils; Rem, Lindo, Shiki, Mage, Urie, Roen, Azuna

Corpse Party; Satoshi, Yoshiki

Black Butler; Ciel, Finnian, Snake, Soma, Ronald, Dagger

ReLIFE; Kazu, Ryo, Rena, Inukai, An

Attack on Titan; Levi, Sasha

Prison School; Kiyoshi, Mari, Chiyo, Anzu

Sword Art Online; Yuuki, Sinon, Ayano, Lisbeth, Jun, Eiji, Yuna

Haikyuu; Oikawa, Kageyama, Nishinoya, Tsukki, Takeda, Bokuto, Akaashi, Saeko, Kuroo

Assassination Classroom; Karma, Karasuma, Itona, Rio, Sugino, Isogai, Chiba, Hayami, Maehara, Gakushuu, Bitch-sensei, Koro-sensei

Death Note; Light, L, Nate, Matsuda

Yuri!!! on Ice; Yuri, Phichit, Seung-Gil, Minami, Yuuko

Noragami; Yato, Hiyori, Yukine, Kofuku, Ebisu, Bishamon, Kazuma

Ao no Exorcist; Rin, Suguro, Shima, Izumo, Fujimoto, Shura, Mephisto, Kuro, Yoshikuni, Cheng-Long Liu, Mamushi, Usamaro

Tonari no Kaibutsu-kun; Haru, Yamaken, Natsume, Yuzan, Sasayan, Takashi, Masahiro, Mitsuyoshi

Servamp; Kuro, Misono, Licht, Lawless, Hyu, Mikuni, Tetsu, Ryuusei

Akatsuki no Yona; Hak, Yun, Zeno, Ki-ja, Yona

Blood Lad; Staz, Wolf, Bell, Nell, Vlad, Richard

Deadman Wonderland; You, Karako, Senji, Rokuro, Chan

Mirai Nikki; Akise, Ninth, Nishijima, Hinata

Kono Subarashii Sekai ni Shukufuku wo!; Kazuma, Aqua, Darkness, Megumin, Chris, Dust

Marginal#4; Atom, Rui, Tsubasa, Shy, Kira

Kuzu no Honkai; Mugi, Hanabi

Zankyou no Terror; Twelve, Nine

Magi; Alibaba, Morgiana, Seisyun, Judar, Paimon, Ugo, Jamil, Goltas, Leila, Ja'far, Hakuryuu, Masrur, Spartos, Sharrkan, Titus, Sphintus, Kouha, Kougyoku, Yamraiha, Yunan, Mystras

Karneval; Gareki, Yogi, Jiki, Tsukumo, Hirato, Tsukitachi, Karoku (the real one), Iva

B-Project; Tomohisa, Ryuji, Goushi, Yuuta, Hikaru

The Devil is a Part-Timer!; Sadao, Yusa, Lucifer

Tokyo Ghoul; Hide, Touka, Uta, Nishiki, Ayato, Takizawa, Shinohara, Amon, Irimi, Urie, Sasaki, Saiko, Shirazu

Naruto; Sasuke, Kakashi, Naruto, Iruka, Ino, Gaara, Shikamaru, Kiba, Lee, Neji, Gai, Jiraiya, Hayate, Pakkun, Idate, Izumo, Kotetsu, Deidara, Sasori, Tenten, Kabuto, Inari, Tsunade, Sumaru, Natsuhi, Onbu, Shizune, Akio, Gantetsu, Menma, Sai, Suigetsu

Akashic Records; Glenn, Sistine

Starmyu; Kaito, Kakeru, Shuu, Rui, Otori, Tavian, Yuki, Toraishi, Taiga, Ageha, Inumine, Ugawa

Death Parade; Decim, Nona, Clavis, Ginti

Renai Boukun; Seiji, Guri, Akua

Eromanga-sensei; Sagiri, Izumi (her brother)

Bloodivores; Mi Liu, Lee Shin, Yaya

One Punch Man; Saitama, Genos, Sonic

La storia della Arcana Famiglia; Nova, Libertà, Felicità, Debito, Luca, Paced

Room Mate; Takumi, Aoi, Shinya

DanMachi; Bell, Hestia, Welf, Bete

Akuma no Riddle; Tokaku, Karuki, Chitaru, Shutou, Mizorogi-sensei

Durarara!!; Izaya, Masaomi, Shizuo, Karisawa, Yumasaki, Kadota, Shinra, Celty, Mairu, Chikage

Another; Misaki, Naoya, Izumi, Reiko, Mizuno, Tomohiko, Koichi

Charlotte; Nao, Yuu, Takajou, Misa, Shunsuke, Kumagami, Shichino, Maedomari, Medoki

AnoHana; Jinta, Naruko, Popo, Yukiatsu

Amagi Brilliant Park; Seiya, Isuzu, Salama, Moffle, Tiramie

Erased; Kenya, Airi, Satoru, Sachiko, Kayo

Dance in the Vampire Bund; None, this anime is shit

Gekkan Shoujo Nozaki-kun; I LOVE THEM ALL

Koi to Uso; Ririna, Nisaka, Shuu, Yajima

Nana Maru San Batsu; Mikuriya, Fukami, Sasajima, Inoue, Takumi

Netsuzou TRap; Fujiwara, Hotaru, Yuma

Classroom of the Elite; Horikita, Ayanokoji, Ike

Gamers!; Misumi, Uehara, Konoha

Bonjour🎵Sweet Love Pâtisserie; Ryou, Sayuri, Mitsuki, Gil, Ran, Suzumi

Isekai Shokudou; no one special

Acchi Kocchi; everyone ^~^

Ani ni Tsukeru Kusuri wa nai!; no one special

Granblue Fantasy; Gran, Rackam, Katalina, Drang, Vii

Saiki Kusuo no Psi-nan; Saiki (Kusuo), Kaidou, Toritsuka, Kuusuke

Tonari no Seki-kun; no one special

The Irregular at Magic High School; Tatsuya, Miyuki, Erika, Shizuku, Masaki, Mikihiko

Sakura Trick; Haruka, Yuzu, Kotone

Soul Eater; Death the Kid, Soul Eater Evans, Tsubaki, Black Star, Franken Stein, Liz, Blair, Eruka, Justin, Hero/Hiro, Asura, Marie, Maka's father

Touken Ranbu: Hanamaru; Kashuu, Yasusada, Nakigitsune, Shokudaikiri, Yamanbagiri, Ichigo, Yagen

Danganronpa; Junko, Monokuma, Kyouko, Celestia, Byakuya, Aoi, Kyousuke, Nagito, Yasuhiro, Izayoi, Nagisa, Sakakura

Danshi Koukousei no Nichijou; Hidenori, Yoshitake, Tadakuni, 'President'

Hamatora. The Animation; Nice, Art, Hajime, Birthday, Ratio, Koneko, Theo

Kyoukai no Kanata; Akihito, Hiroomi, Yayoi

Demi-chan wa Kataritai; Hikari, Takahashi, Himari

Animegataris; Kai, Minoa, Arisu, Erika, Nakano, Bei Bei

Just Because!; Komiya, Eita, Haruto, Yoriko, Junpei

Code:Realize; Lupin, Impey, Van Helsing

Honeyworks in general; Haruki, Yuu, Natsuki, Souta, Akechi

Bungou Stray Dogs; Dazai, Chuuya, Tanizaki, Ranpo, Yosano

Kaichou wa Maid-sama; Takumi, Misaki, Aoi, Suzuna, Tora, Kanou, Aratake, Naoya

Ouran High School Host Club; Tamaki, Hikaru, Mori

Uta no Prince-sama; Syo, Tokiya, Ai

Fairy Tail; Gray, Lyon, Erza, Natsu, Lucy, Happy, Makarov, Aquarius, Cancer, Taurus, Loki, Sagittarius, Mira, Levy, Jellal, Cana, Alzack, Mystogun, Justine, Yajima, Hibiki, Gildarts, Midnight, Zeref, Gajeel, Sting, Rogue, Kobra

Watashi ga Motete Dousunda; Nanashima, Nashima

Toradora!; Taiga, Ryuuji, Kitamura, Yasuko

Mekakucity Actors; Kido, Kano, Ene

Ousama Game; no one special

TsukiPro. The Animation; Tsubasa, Sora, Nozomu, Ryouta

Prince of Stride: Alternative; Riku, Takeru, Ayumu, Heath, Reiji, Bantarou, Asuma, Kaede

Lucky☆Star; Konata, Kagami

Hetalia; Germany, Japan, England, Romano (South Italy), Poland, Prussia, Spain, Denmark, Iceland, Hungary, Seychelles

Koi wa Ameagari no You ni; Yoshizawa, Akira, Kondou

Ookami Shoujo to Kuro Ouji; Kyouya, Takeru, Yuu, Ayumi, Nozomi

Mahoutsukai no Yome; Chise, Alice, Ruth, Stella, Cartaphilus, Lindel, Innis, Oberon, Morii, Angelica

Vampire Knight; Zero, Yuuki, Hanabusa, Shiki, Akatsuki, Takuma, Kaien, Sayori

Boku no Hero Academia; Todoroki, Bakugou, Momo, Tsuyu, Dabi, Uraraka, Kirishima, Kaminari, Shigaraki

Yuru Camp △; Rin, Nadeshiko

citrus.; Yuzu, Mei, Harumin, Aihara (the mom)

3D Kanojo; Iroha, Tsutsun, Mitsuya

Butlers: Chitose Momotose Monogatari; J, Tsubasa, Haruto, Daichi, Tachibana, Mikuni, Yuuki

Tada-kun wa Koi wo Shinai; Tada, Hinako, Alec, Kaoru, Kentarou, Hajime

Wotaku ni Koi wa Muzukashii; Hirotaka, Narumi, Koyanagi, Kabakura, Naoya

Beatless; I literally just watched one episode, gimme some time

Black Clover; Asta, Yuno, Noelle, Yami, Finral

Mahou Shoujo Site; Yatsumura

Devils Line; Anzai, Lee

Nil Admirari no Tenbin: Teito Genwaku Kitan; Hayato, Akira, Tsugumi, Shougo, this one guy from the library

Caligula; Shikishima, Shougo, Naruko

Things besides anime;

OZMAFIA!!; Caramia, Robin Hood

Amnesia; Shin, Toma

Harvest Moon: Tale of Two Towns; Cam, Ash, Robin

Harvest Moon: A New Beginning; Neil, Allen

.........................................................

Don't hesitate with requests!
But, please; Requests only with story info.
Either something like 'Shy!Haruka Nanase x Dominant!Reader' or 'How about a date at an amusement park? Then, at the end, he confesses his love for you, kyaaah! >///<'
... You know what I'm getting at.

Well then, have fun reading!

Meow! 😺